■ 마이크 입력 스펙트로그램을 표시하는 방법을 보여준다.
▶ ArgoColorMap.cs
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using System; namespace TestLibrary { /// <summary> /// 아르고 색상 맵 /// </summary> public class ArgoColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// RGB 배열 /// </summary> private readonly int[] rgbArray = { 00000000, 00000004, 00000264, 00000267, 00000527, 00000530, 00000789, 00066328, 00066588, 00066591, 00066849, 00132388, 00132647, 00132650, 00132908, 00198447, 00198706, 00198708, 00264503, 00264505, 00330299, 00330557, 00330560, 00396354, 00396612, 00462150, 00462408, 00527946, 00528204, 00593998, 00594000, 00659794, 00660052, 00725590, 00791383, 00791641, 00857435, 00857437, 00923230, 00989024, 00989026, 01054819, 01120613, 01120870, 01186408, 01252201, 01252459, 01318252, 01384046, 01384047, 01449841, 01515634, 01515892, 01581429, 01647222, 01713016, 01713273, 01779066, 01844860, 01910397, 01976190, 01976447, 02042241, 02108034, 02173827, 02239364, 02239621, 02305415, 02371208, 02437001, 02502794, 02568587, 02568844, 02634381, 02700174, 02765968, 02831761, 02897554, 02963347, 03029140, 03029397, 03095190, 03160983, 03226520, 03292313, 03358106, 03423899, 03489692, 03555485, 03621278, 03687071, 03752864, 03818656, 03884449, 03950242, 04016035, 04081828, 04147621, 04147878, 04213671, 04279464, 04345256, 04411049, 04476842, 04542635, 04608428, 04739757, 04805550, 04871342, 04937135, 05002928, 05068721, 05134514, 05200306, 05266099, 05331892, 05397685, 05463477, 05529270, 05595063, 05660856, 05726648, 05792441, 05858234, 05924027, 05989819, 06121148, 06186941, 06252734, 06318526, 06384319, 06450112, 06515904, 06581953, 06647746, 06779074, 06844867, 06910660, 06976452, 07042245, 07108038, 07173830, 07239623, 07370952, 07436744, 07502793, 07568586, 07634378, 07700171, 07765964, 07897292, 07963085, 08028877, 08094670, 08160719, 08226511, 08357840, 08423632, 08489425, 08555218, 08621010, 08752339, 08818387, 08884180, 08949973, 09015765, 09147094, 09212886, 09278679, 09344727, 09410520, 09541849, 09607641, 09673434, 09739226, 09870555, 09936603, 10002396, 10068188, 10133981, 10265309, 10331102, 10397150, 10462943, 10594272, 10660064, 10725857, 10791905, 10923234, 10989026, 11054819, 11120611, 11251940, 11317988, 11383781, 11515109, 11580902, 11646694, 11712743, 11844071, 11909864, 11975656, 12106985, 12173033, 12238826, 12304618, 12435947, 12501995, 12567787, 12699116, 12764908, 12830701, 12962285, 13028078, 13093870, 13159663, 13291247, 13357040, 13422832, 13554161, 13619953, 13686001, 13817330, 13883122, 13948915, 14080499, 14146292, 14212084, 14343412, 14409461, 14475253, 14606582, 14672374, 14738423, 14869751, 14935543, 15066872, 15132920, 15198713, 15330041, 15396090, 15461882, 15593210, 15659003, 15725051, 15856380, 15922172, 16053500, 16119549, 16185341, 16316670, 16382718, 16448510, 16579839, 16645631, 16777215, }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB 튜플</returns> public (byte r, byte g, byte b) GetRGB(byte value) { byte[] byteArray = BitConverter.GetBytes(this.rgbArray[value]); return (byteArray[2], byteArray[1], byteArray[0]); } #endregion } } |
▶ BlueColorMap.cs
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using System; namespace TestLibrary { /// <summary> /// 청색 색상 맵 /// </summary> public class BlueColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// ARGB 배열 /// </summary> private readonly int[] argbArray = { -16767403, -16767402, -16767144, -16766887, -16701093, -16700835, -16700578, -16634784, -16634527, -16634269, -16568476, -16568218, -16568216, -16567959, -16502165, -16501908, -16501650, -16435856, -16435599, -16435341, -16369548, -16369290, -16369033, -16303495, -16303238, -16302980, -16237186, -16236929, -16236671, -16236414, -16170620, -16170363, -16170105, -16104312, -16104054, -16103797, -16038259, -16038002, -16037745, -15971951, -15971694, -15971436, -15905643, -15905385, -15905128, -15839335, -15839077, -15838820, -15773027, -15772769, -15772512, -15706718, -15706717, -15706460, -15706203, -15640409, -15640152, -15574359, -15574101, -15573844, -15508051, -15507794, -15507537, -15441743, -15441486, -15441229, -15375436, -15375179, -15309386, -15309128, -15308871, -15243078, -15242821, -15177284, -15177027, -15111234, -15110977, -15045184, -15044927, -14979134, -14978877, -14913084, -14912827, -14847034, -14781241, -14780984, -14715191, -14715190, -14649397, -14583605, -14517812, -14517555, -14451762, -14385969, -14320176, -14319920, -14254383, -14188590, -14122797, -14057005, -13991212, -13925419, -13859626, -13859626, -13793833, -13662505, -13596712, -13530919, -13465383, -13399590, -13333797, -13268005, -13202212, -13136676, -13005347, -12939555, -12873762, -12808226, -12676897, -12611105, -12545312, -12414240, -12348447, -12282655, -12151327, -12085790, -12019998, -11888669, -11822877, -11757341, -11626012, -11560220, -11429148, -11363355, -11232027, -11166235, -11035162, -10969370, -10903578, -10772505, -10706713, -10575385, -10509592, -10378520, -10312728, -10181400, -10115863, -09984535, -09918743, -09787414, -09721878, -09590550, -09524758, -09393429, -09327893, -09262101, -09130773, -09065237, -08933908, -08868116, -08736788, -08671252, -08605459, -08474131, -08408339, -08277267, -08211475, -08145682, -08014354, -07948818, -07817490, -07751698, -07685905, -07554833, -07489041, -07357713, -07291921, -07226128, -07095056, -07029264, -06897936, -06832144, -06766351, -06635279, -06569487, -06503695, -06372367, -06306575, -06175502, -06109710, -06043918, -05912590, -05846798, -05781261, -05649933, -05584141, -05518349, -05387021, -05321485, -05190156, -05124364, -05058572, -04927244, -04861452, -04730123, -04664587, -04598795, -04467467, -04401675, -04335883, -04204554, -04139018, -04007690, -03941898, -03876106, -03744777, -03678985, -03547657, -03481865, -03416329, -03285000, -03219208, -03087880, -03022088, -02956296, -02824968, -02759175, -02628103, -02562311, -02430983, -02365191, -02299398, -02168070, -02102278, -01970950, -01905158, -01839621, -01708293, -01642501, -01511173, -01445381, -01314052, -01248260, -01182468, -01051140, -00985604, -00854275, -00788483, -00657155, -00591363, -00525571, -00394242, -00328450, -00197122, -00131330, -00000001, }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB 튜플</returns> public (byte r, byte g, byte b) GetRGB(byte value) { byte[] byteArray = BitConverter.GetBytes(this.argbArray[value]); return (byteArray[2], byteArray[1], byteArray[0]); } #endregion } } |
▶ GrayscaleColorMap.cs
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namespace TestLibrary { /// <summary> /// 회색조 색상 맵 /// </summary> public class GrayscaleColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB</returns> public (byte r, byte g, byte b) GetRGB(byte value) { return (value, value, value); } #endregion } } |
▶ GrayscaleReversedColorMap.cs
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namespace TestLibrary { /// <summary> /// 회색조 반전 색상 맵 /// </summary> public class GrayscaleReversedColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB</returns> public (byte r, byte g, byte b) GetRGB(byte value) { value = (byte)(255 - value); return (value, value, value); } #endregion } } |
▶ GreenColorMap.cs
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using System; namespace TestLibrary { /// <summary> /// 녹색 색상 맵 /// </summary> public class GreenColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// ARGB 배열 /// </summary> private readonly int[] argbArray = { -16761088, -16760832, -16760575, -16760318, -16760061, -16759804, -16759547, -16759290, -16759033, -16758776, -16758519, -16758006, -16757749, -16757492, -16757235, -16756979, -16756722, -16756465, -16756208, -16755951, -16755694, -16755437, -16755180, -16754667, -16754410, -16688617, -16688360, -16688104, -16687847, -16687590, -16687333, -16687076, -16621283, -16621026, -16620769, -16620512, -16620256, -16554463, -16554206, -16553949, -16553692, -16487899, -16487642, -16487385, -16421336, -16421080, -16420823, -16355030, -16354773, -16288980, -16288723, -16222930, -16222930, -16222673, -16156880, -16156623, -16090830, -16025038, -16024781, -15958988, -15958731, -15892938, -15827145, -15826889, -15761096, -15695303, -15695046, -15629254, -15563461, -15497924, -15497667, -15431875, -15366082, -15300289, -15234496, -15234240, -15168447, -15102654, -15037118, -14971325, -14905532, -14839740, -14773947, -14708154, -14642618, -14576825, -14511033, -14445240, -14379447, -14313655, -14248118, -14182326, -14116533, -14050741, -13985204, -13919412, -13853619, -13722291, -13656498, -13590962, -13525169, -13459377, -13328048, -13262512, -13196720, -13130927, -13065391, -12934063, -12868270, -12802478, -12671406, -12605613, -12539821, -12408749, -12342957, -12277164, -12146092, -12080300, -12014508, -11883435, -11817643, -11686315, -11620779, -11554986, -11423914, -11358122, -11226794, -11161258, -11029929, -10964137, -10833065, -10767273, -10636201, -10570408, -10439080, -10373544, -10242216, -10176680, -10045351, -09914023, -09848487, -09717159, -09651623, -09520294, -09389222, -09323430, -09192102, -09061029, -08995237, -08864165, -08798372, -08667300, -08535972, -08404643, -08339107, -08207779, -08076706, -08010914, -07879842, -07748513, -07682977, -07551648, -07420576, -07289248, -07223711, -07092383, -06961054, -06895518, -06764189, -06633116, -06501788, -06436251, -06304923, -06173850, -06108057, -05976984, -05845656, -05714583, -05648790, -05517717, -05386389, -05320596, -05189523, -05123730, -04992657, -04861328, -04795791, -04664462, -04598925, -04467596, -04336523, -04270730, -04139400, -04073863, -03942534, -03876997, -03745667, -03680130, -03614337, -03483007, -03417470, -03286140, -03220603, -03154809, -03023479, -02957942, -02892148, -02826610, -02760817, -02629487, -02563949, -02498155, -02432617, -02366823, -02301029, -02235491, -02169697, -02103903, -02038365, -01972571, -01906777, -01841239, -01775444, -01709650, -01644112, -01578318, -01512523, -01446985, -01381191, -01315396, -01249858, -01249599, -01183805, -01118266, -01052472, -00986678, -00986675, -00920880, -00855086, -00789547, -00723753, -00723494, -00657956, -00592161, -00526367, -00526108, -00460569, -00394775, -00394516, -00328977, -00263183, -00197388, -00197385, -00131591, -00065796, -00000001, }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB</returns> public (byte r, byte g, byte b) GetRGB(byte value) { byte[] byteArray = BitConverter.GetBytes(this.argbArray[value]); return (byteArray[2], byteArray[1], byteArray[0]); } #endregion } } |
▶ InfernoColorMap.cs
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using System; namespace TestLibrary { /// <summary> /// 인페르노 색상 맵 /// </summary> public class InfernoColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// RGB 배열 /// </summary> private readonly int[] rgbArray = { 00000003, 00000004, 00000006, 00065543, 00065801, 00065803, 00131342, 00131600, 00197138, 00262932, 00262934, 00328728, 00394267, 00460061, 00525855, 00591393, 00657187, 00722726, 00854056, 00919594, 00985389, 01050927, 01182258, 01247796, 01313590, 01444665, 01510203, 01641278, 01706816, 01838147, 01903685, 02034759, 02100298, 02231116, 02362190, 02493264, 02558802, 02689876, 02820694, 02951768, 03017306, 03148380, 03279197, 03410271, 03475808, 03606881, 03737954, 03869028, 03934565, 04065638, 04196710, 04262247, 04393576, 04524649, 04590185, 04721514, 04852586, 04918379, 05049451, 05180780, 05246316, 05377644, 05443181, 05574509, 05705581, 05771373, 05902701, 05968238, 06099566, 06230638, 06296430, 06427758, 06493294, 06624622, 06690158, 06821486, 06952814, 07018350, 07149678, 07215214, 07346542, 07477613, 07543405, 07674733, 07740269, 07871597, 08002669, 08068460, 08199532, 08265324, 08396651, 08462187, 08593515, 08724586, 08790378, 08921450, 08987241, 09118313, 09249641, 09315432, 09446504, 09512295, 09643367, 09774694, 09840230, 09971557, 10037348, 10168420, 10234211, 10365283, 10496610, 10562401, 10693473, 10759264, 10890335, 10956127, 11087454, 11218525, 11284316, 11415643, 11481435, 11612506, 11678297, 11809624, 11875159, 12006486, 12072278, 12203605, 12269396, 12400467, 12466258, 12532049, 12663376, 12729167, 12860494, 12926285, 13057612, 13123147, 13188938, 13320265, 13386056, 13451847, 13583430, 13649220, 13715011, 13780802, 13912129, 13977920, 14043711, 14109502, 14241085, 14306875, 14372666, 14438457, 14504504, 14570295, 14636086, 14702132, 14833459, 14899250, 14965297, 15031088, 15096878, 15097389, 15163180, 15229227, 15295018, 15361064, 15426855, 15492902, 15558693, 15559203, 15625250, 15691041, 15757087, 15757342, 15823389, 15889436, 15889690, 15955737, 15956248, 16022038, 16088085, 16088596, 16154642, 16154897, 16220944, 16221454, 16287501, 16287756, 16288267, 16354313, 16354824, 16355336, 16421127, 16421638, 16422150, 16422662, 16488710, 16489222, 16489734, 16489991, 16490503, 16491016, 16491530, 16492043, 16492557, 16493070, 16493584, 16494098, 16494612, 16494870, 16495384, 16495898, 16496412, 16496926, 16431905, 16432419, 16432933, 16433448, 16368426, 16368940, 16369455, 16304433, 16304948, 16305463, 16240442, 16240956, 16175935, 16176450, 16111429, 16111944, 16046923, 16047183, 15982162, 15982678, 15983193, 15918173, 15918688, 15853668, 15853928, 15854444, 15854960, 15855220, 15855737, 15856253, 15922049, 15922309, 15988361, 16054157, 16119953, 16186005, 16251801, 16383133, 16448928, 16580260, }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB</returns> public (byte r, byte g, byte b) GetRGB(byte value) { byte[] byteArray = BitConverter.GetBytes(this.rgbArray[value]); return (byteArray[2], byteArray[1], byteArray[0]); } #endregion } } |
▶ LoporaColorMap.cs
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using System; namespace TestLibrary { /// <summary> /// 로포라 색상 맵 /// </summary> public class LoporaColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// RGB 배열 /// </summary> private readonly int[] rgbArray = { 0000000000, 0000069696, 0000137036, 0000203860, 0000270426, 0000336991, 0000403300, 0000469608, 0000535915, 0000602222, 0000668273, 0000734580, 0000800631, 0000866681, 0000932987, 0000999037, 0001065088, 0001131137, 0001197187, 0001262981, 0001329031, 0001395080, 0001461130, 0001526924, 0001592973, 0001659023, 0001724816, 0001790865, 0001856659, 0001922708, 0001988501, 0002054550, 0002120344, 0002186393, 0002252186, 0002317979, 0002384028, 0002449821, 0002515614, 0002581663, 0002647456, 0002713249, 0002779042, 0002845091, 0002910884, 0002976677, 0003042470, 0003108263, 0003174056, 0003240105, 0003305898, 0003371690, 0003437483, 0003503276, 0003569069, 0003634862, 0003700654, 0003766447, 0003832240, 0003898033, 0003963825, 0004029618, 0004095411, 0004161204, 0004227252, 0004292789, 0004358582, 0004424374, 0004490167, 0004555960, 0004621752, 0004687545, 0004753338, 0004819130, 0004884923, 0004950716, 0005016508, 0005082301, 0005148093, 0005213886, 0005279679, 0005345215, 0005411008, 0005476800, 0005542593, 0005608386, 0005674178, 0005739971, 0005805763, 0005871300, 0005937092, 0006002885, 0006068677, 0006134470, 0006200263, 0006265799, 0006331592, 0006397384, 0006463177, 0006528969, 0006594506, 0006660298, 0006726091, 0006791883, 0006857676, 0006923212, 0006989005, 0007054797, 0007120590, 0007186126, 0007251918, 0007317711, 0007383503, 0007449040, 0007514832, 0007580625, 0007646417, 0007711954, 0007777746, 0007843539, 0007909331, 0007974867, 0008040660, 0008106452, 0008171989, 0008237781, 0008303574, 0008369366, 0008434902, 0008435159, 0008500951, 0008566488, 0008632280, 0008698072, 0008763609, 0008829401, 0008895194, 0008960986, 0009026522, 0009092315, 0009158107, 0009223644, 0009289436, 0009355228, 0009420765, 0009486557, 0009552350, 0009617886, 0009683678, 0009749471, 0009815007, 0009880799, 0009946336, 0010012128, 0010077921, 0010143457, 0010209249, 0010275042, 0010340578, 0010406370, 0010472163, 0010537699, 0010603491, 0010669028, 0010734820, 0010800612, 0010866149, 0010931941, 0010997734, 0011063270, 0011129062, 0011194599, 0011260391, 0011326183, 0011391720, 0011457512, 0011523048, 0011588841, 0011654633, 0011720169, 0011785962, 0011851498, 0011917290, 0011983082, 0012048619, 0012114411, 0012179947, 0012245740, 0012311532, 0012377068, 0012442861, 0012508397, 0012574189, 0012639726, 0012705518, 0012771310, 0012836847, 0012902639, 0012968175, 0013033967, 0013099504, 0013165296, 0013231088, 0013296625, 0013362417, 0013427953, 0013493746, 0013559282, 0013625074, 0013690610, 0013756403, 0013822195, 0013887731, 0013953524, 0014019060, 0014084852, 0014150388, 0014216181, 0014281717, 0014347509, 0014413046, 0014478838, 0014544374, 0014610166, 0014675959, 0014741495, 0014807287, 0014872823, 0014938616, 0015004152, 0015069944, 0015135481, 0015201273, 0015266809, 0015332601, 0015398138, 0015463930, 0015529466, 0015595258, 0015660795, 0015726587, 0015792123, 0015857915, 0015923452, 0015989244, 0016054780, 0016120572, 0016186109, 0016251901, 0016317437, 0016383229, 0016448766, 0016514558, 0016580350, 0016645887, 0016711679, }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB</returns> public (byte r, byte g, byte b) GetRGB(byte value) { byte[] byteArray = BitConverter.GetBytes(this.rgbArray[value]); return (byteArray[2], byteArray[1], byteArray[0]); } #endregion } } |
▶ MagmaColorMap.cs
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using System; namespace TestLibrary { /// <summary> /// 마그마 색상 맵 /// </summary> public class MagmaColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// RGB 배열 /// </summary> private readonly int[] rgbArray = { 00000003, 00000004, 00000006, 00065543, 00065801, 00065803, 00131597, 00131599, 00197393, 00262931, 00263189, 00328727, 00394521, 00460059, 00525853, 00591647, 00657186, 00722980, 00788774, 00854568, 00920106, 00985900, 01051695, 01117233, 01183027, 01314101, 01379896, 01445434, 01511228, 01576767, 01708097, 01773636, 01839174, 01970249, 02036043, 02101581, 02232656, 02298194, 02429269, 02494807, 02625881, 02756956, 02822494, 02953312, 03084386, 03149925, 03280999, 03412072, 03477354, 03608428, 03739502, 03870575, 03936113, 04067186, 04198259, 04329332, 04394869, 04525942, 04657015, 04722808, 04853881, 04919417, 05050746, 05181819, 05247611, 05378684, 05444476, 05575549, 05706877, 05772670, 05903742, 05969534, 06100862, 06166399, 06297727, 06363263, 06494591, 06625920, 06691456, 06822784, 06888576, 07019648, 07085440, 07216769, 07282305, 07413633, 07544705, 07610497, 07741825, 07807361, 07938689, 08004225, 08135553, 08266881, 08332417, 08463745, 08529281, 08660609, 08726145, 08857473, 08988801, 09054337, 09185664, 09251200, 09382528, 09513600, 09579392, 09710464, 09776256, 09907327, 10038655, 10104191, 10235519, 10366590, 10432382, 10563454, 10694782, 10760317, 10891645, 10957181, 11088508, 11219836, 11285371, 11416699, 11547771, 11613562, 11744634, 11875961, 11941497, 12072824, 12138360, 12269687, 12401015, 12466550, 12597877, 12728949, 12794740, 12926068, 12991603, 13122930, 13254258, 13319793, 13451120, 13516912, 13648239, 13714030, 13845101, 13910893, 14042220, 14108011, 14239338, 14305129, 14436457, 14502248, 14568039, 14699366, 14765158, 14830949, 14962276, 15028323, 15094114, 15159906, 15225953, 15357280, 15423072, 15489119, 15554911, 15620958, 15621469, 15687261, 15753309, 15819100, 15885148, 15951196, 15951707, 16017499, 16083547, 16084059, 16150107, 16150619, 16216411, 16216924, 16282972, 16283484, 16349532, 16350045, 16350557, 16416606, 16416862, 16417375, 16483424, 16483936, 16484449, 16484962, 16551011, 16551523, 16552036, 16552549, 16552806, 16618855, 16619368, 16619881, 16620394, 16620907, 16621420, 16621934, 16622191, 16622704, 16688753, 16689267, 16689780, 16690293, 16690806, 16691064, 16691577, 16692091, 16692604, 16693117, 16693631, 16694144, 16694402, 16694915, 16695429, 16695942, 16696456, 16696969, 16697227, 16697741, 16698254, 16633232, 16633746, 16634259, 16634517, 16635031, 16635544, 16636058, 16636572, 16637085, 16637343, 16637857, 16638371, 16573349, 16573862, 16574120, 16574634, 16575148, 16575662, 16576176, 16576689, 16576947, 16577461, 16577975, 16512953, 16513467, 16513725, 16514239, }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB</returns> public (byte r, byte g, byte b) GetRGB(byte value) { byte[] byteArray = BitConverter.GetBytes(this.rgbArray[value]); return (byteArray[2], byteArray[1], byteArray[0]); } #endregion } } |
▶ PlasmaColorMap.cs
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using System; namespace TestLibrary { /// <summary> /// 플라스마 색상 맵 /// </summary> public class PlasmaColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// RGB 배열 /// </summary> private readonly int[] rgbArray = { 00788358, 01050503, 01246857, 01377930, 01574539, 01771148, 01902221, 02033038, 02164111, 02295184, 02426257, 02557330, 02688403, 02819476, 02950292, 03081365, 03212438, 03343511, 03409048, 03540120, 03671193, 03802266, 03867546, 03998619, 04129692, 04195228, 04326301, 04457374, 04522910, 04653727, 04784799, 04850336, 04981409, 05112481, 05178018, 05308834, 05374371, 05505443, 05636515, 05702052, 05833124, 05898405, 06029477, 06160549, 06226086, 06357158, 06422694, 06553767, 06619303, 06750375, 06815911, 06946983, 07078056, 07143592, 07274664, 07340200, 07471272, 07536808, 07667880, 07733672, 07864744, 07930280, 08061608, 08127143, 08258471, 08324007, 08455335, 08520871, 08652198, 08717990, 08783782, 08914853, 08980645, 09111972, 09177764, 09309348, 09375139, 09440931, 09572258, 09638049, 09769377, 09835168, 09900960, 10032287, 10098078, 10164126, 10295453, 10361244, 10427035, 10492827, 10624154, 10689945, 10755736, 10821527, 10953111, 11018902, 11084693, 11150484, 11281811, 11347602, 11413393, 11479184, 11545231, 11611023, 11676814, 11808141, 11873932, 11939723, 12005514, 12071561, 12137352, 12203143, 12268934, 12334725, 12400516, 12466307, 12532098, 12598145, 12663936, 12729728, 12795519, 12861310, 12927101, 12992892, 13058683, 13124730, 13190521, 13256312, 13322103, 13387894, 13453685, 13519477, 13585268, 13651315, 13717106, 13717361, 13783152, 13848943, 13914734, 13980525, 14046573, 14112364, 14112619, 14178410, 14244201, 14309992, 14375783, 14441830, 14442086, 14507877, 14573668, 14639459, 14639714, 14705761, 14771552, 14837344, 14903135, 14903390, 14969437, 15035228, 15035483, 15101274, 15167066, 15233113, 15233368, 15299159, 15364950, 15365205, 15431252, 15497044, 15497299, 15563090, 15563601, 15629392, 15695183, 15695438, 15761485, 15761741, 15827532, 15893579, 15893834, 15959625, 15959880, 16025927, 16026183, 16091974, 16092485, 16158276, 16158531, 16159042, 16224833, 16225089, 16291136, 16291391, 16291902, 16357693, 16357948, 16423995, 16424250, 16424762, 16425017, 16491064, 16491319, 16491574, 16557621, 16557877, 16558388, 16558643, 16559154, 16559409, 16625457, 16625712, 16626223, 16626478, 16626989, 16627245, 16627756, 16628011, 16628523, 16628778, 16629289, 16629801, 16630056, 16630568, 16630823, 16631334, 16566054, 16566566, 16567077, 16567333, 16567845, 16502820, 16503076, 16503588, 16438564, 16438820, 16439332, 16374052, 16374564, 16309540, 16310052, 16244772, 16245285, 16180261, 16180517, 16115494, 16116006, 16050726, 15985702, 15986214, 15921190, 15921446, 15856422, 15791397, 15791651, 15726625, }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB</returns> public (byte r, byte g, byte b) GetRGB(byte value) { byte[] byteArray = BitConverter.GetBytes(this.rgbArray[value]); return (byteArray[2], byteArray[1], byteArray[0]); } #endregion } } |
▶ TurboColorMap.cs
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using System; namespace TestLibrary { /// <summary> /// 터보 색상 맵 /// </summary> public class TurboColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// ARGB 배열 /// </summary> private readonly int[] argbArray = { -13559489, -13493436, -13427382, -13361328, -13295018, -13228964, -13162911, -13096857, -13030547, -12964493, -12898440, -12832130, -12766077, -12700023, -12633970, -12567660, -12501607, -12435554, -12369245, -12303192, -12237139, -12171086, -12170313, -12104260, -12038208, -12037436, -11971383, -11905331, -11904559, -11838507, -11837991, -11771940, -11771168, -11770653, -11770138, -11703831, -11703316, -11702801, -11702287, -11701517, -11701003, -11700489, -11765255, -11764742, -11764228, -11828995, -11828482, -11893506, -11892737, -11957761, -12022785, -12022017, -12087042, -12152067, -12217092, -12347397, -12412423, -12477448, -12542218, -12672780, -12737806, -12802577, -12933139, -12998166, -13128729, -13193500, -13324063, -13389091, -13519654, -13584682, -13714989, -13780017, -13910581, -13975609, -14106173, -14171201, -14301765, -14366793, -14431822, -14562386, -14627414, -14692442, -14757471, -14822499, -14887527, -14952556, -14952048, -15017332, -15082361, -15081853, -15147137, -15146629, -15146121, -15145869, -15145361, -15145109, -15079065, -15078812, -15013024, -15012515, -14946726, -14880938, -14749356, -14683567, -14617778, -14486453, -14355127, -14223801, -14092475, -13961405, -13764543, -13633217, -13436355, -13239748, -13108422, -12911559, -12714952, -12518089, -12255946, -12059339, -11862476, -11600333, -11403725, -11141582, -10879182, -10682575, -10420431, -10158287, -09896143, -09633999, -09372111, -09175503, -08913359, -08651215, -08389327, -08127183, -07865294, -07603150, -07341262, -07079117, -06817229, -06555341, -06293452, -06031308, -05834955, -05573067, -05311178, -05114826, -04852937, -04656585, -04394952, -04198600, -04002247, -03740358, -03544262, -03347910, -03217349, -03020997, -02824900, -02628804, -02497987, -02301891, -02171331, -02040770, -01910210, -01779394, -01648834, -01518273, -01387713, -01257153, -01126849, -01061824, -00931264, -00866240, -00801216, -00670656, -00605888, -00540864, -00475840, -00411072, -00346048, -00346560, -00281792, -00282304, -00217536, -00218048, -00153280, -00153793, -00154561, -00155073, -00155841, -00156354, -00157122, -00157634, -00158403, -00224451, -00225219, -00291524, -00292036, -00358341, -00424389, -00490694, -00491206, -00557511, -00623559, -00755400, -00821705, -00887754, -00954058, -01085643, -01151948, -01283533, -01349837, -01481422, -01613263, -01679312, -01811153, -01942738, -02074579, -02206164, -02337749, -02469590, -02601175, -02733016, -02930137, -03061978, -03193563, -03390940, -03522526, -03654111, -03851488, -03983073, -04180450, -04377572, -04509157, -04706534, -04838119, -05035497, -05232618, -05429739, -05561580, -05758702, -05956079, -06153200, -06350322, -06482163, -06679284, -06876662, -07073783, -07270904, -07468282, -07665403, -07862524, -08059902, -08257023, -08388608, }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB</returns> public (byte r, byte g, byte b) GetRGB(byte value) { byte[] byteArray = BitConverter.GetBytes(this.argbArray[value]); return (byteArray[2], byteArray[1], byteArray[0]); } #endregion } } |
▶ ViridisColorMap.cs
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using System; namespace TestLibrary { /// <summary> /// 비리디스 색상 맵 /// </summary> public class ViridisColorMap : IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// RGB 배열 /// </summary> private readonly int[] rgbArray = { 04456788, 04457045, 04457303, 04523352, 04523610, 04524123, 04589916, 04590430, 04590687, 04591201, 04656994, 04657507, 04657765, 04658278, 04658535, 04658793, 04659306, 04725099, 04725356, 04725870, 04726127, 04726384, 04726897, 04727154, 04727411, 04727668, 04662645, 04662902, 04663159, 04663416, 04663929, 04664186, 04664443, 04599164, 04599676, 04599933, 04600190, 04534911, 04535423, 04535680, 04535937, 04470657, 04471170, 04405891, 04406147, 04406404, 04341124, 04341381, 04341893, 04276614, 04276870, 04211591, 04211847, 04146567, 04147080, 04081800, 04082057, 04016777, 04017033, 04017289, 03952010, 03952266, 03887242, 03887498, 03822219, 03822475, 03757195, 03757451, 03692171, 03692428, 03627148, 03627404, 03562124, 03562380, 03497100, 03497356, 03432077, 03432333, 03367053, 03367309, 03302029, 03302285, 03237005, 03237261, 03237517, 03172237, 03172493, 03107213, 03107469, 03042190, 03042446, 03042702, 02977422, 02977678, 02912398, 02912654, 02912910, 02847630, 02847886, 02782606, 02782862, 02783118, 02717838, 02718094, 02652814, 02652814, 02653070, 02587790, 02588046, 02588302, 02523022, 02523278, 02523534, 02458254, 02458509, 02393229, 02393485, 02393741, 02328461, 02328717, 02328973, 02263437, 02263693, 02263949, 02198669, 02198924, 02199180, 02133900, 02134156, 02134412, 02069132, 02069387, 02069643, 02069899, 02070155, 02004874, 02005130, 02005386, 02005386, 02005641, 02005897, 02006153, 02006408, 02006664, 02006920, 02007175, 02072967, 02073222, 02073478, 02139269, 02139525, 02205317, 02205572, 02271108, 02336899, 02337154, 02402946, 02468737, 02534529, 02600320, 02666111, 02731903, 02797694, 02863485, 02929021, 03060348, 03126139, 03191930, 03323258, 03389049, 03520376, 03586167, 03717494, 03783030, 03914357, 04045684, 04111475, 04242802, 04374129, 04505200, 04570991, 04702318, 04833645, 04964972, 05096043, 05227369, 05358696, 05490023, 05621350, 05752421, 05883748, 06015074, 06211937, 06343008, 06474335, 06605661, 06802524, 06933595, 07064921, 07196248, 07392854, 07524181, 07655508, 07852114, 07983441, 08180303, 08311374, 08508236, 08639307, 08836169, 08967495, 09164102, 09295428, 09492035, 09623361, 09819967, 09951294, 10147900, 10344762, 10475832, 10672695, 10869301, 11000627, 11197234, 11394096, 11525166, 11722028, 11918635, 12049705, 12246567, 12443174, 12574500, 12771106, 12967713, 13099039, 13295646, 13492253, 13623580, 13820187, 13951258, 14148121, 14344728, 14475800, 14672664, 14803736, 15000344, 15197209, 15328281, 15524890, 15656219, 15852828, 15983902, 16180767, 16311841, 16442914, 16639780, }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB</returns> public (byte r, byte g, byte b) GetRGB(byte value) { byte[] byteArray = BitConverter.GetBytes(this.rgbArray[value]); return (byteArray[2], byteArray[1], byteArray[0]); } #endregion } } |
▶ BitmapHelper.cs
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using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Imaging; using System.Runtime.InteropServices; using System.Threading.Tasks; namespace TestLibrary { /// <summary> /// 비트맵 헬퍼 /// </summary> public static class BitmapHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 비트맵 구하기 - GetBitmap(fftList, colorMap, intensity, db, dbScale, roll, rollOffset) /// <summary> /// 비트맵 구하기 /// </summary> /// <param name="fftList">FFT 리스트</param> /// <param name="colorMap">색상 맵</param> /// <param name="intensity">강도</param> /// <param name="db">dB 적용 여부</param> /// <param name="dbScale">dB 스케일</param> /// <param name="roll">롤 여부</param> /// <param name="rollOffset">롤 오프셋</param> /// <returns>비트맵</returns> public static Bitmap GetBitmap ( List<double[]> fftList, ColorMap colorMap, double intensity = 1, bool db = false, double dbScale = 1, bool roll = false, int rollOffset = 0 ) { if(fftList.Count == 0) { throw new ArgumentException("This Spectrogram contains no FFTs (likely because no signal was added)"); } int width = fftList.Count; int height = fftList[0].Length; Bitmap bitmap = new Bitmap(width, height, PixelFormat.Format8bppIndexed); colorMap.SetBitmapPalette(bitmap); Rectangle lockRectangle = new Rectangle(0, 0, width, height); BitmapData bitmapData = bitmap.LockBits(lockRectangle, ImageLockMode.ReadOnly, bitmap.PixelFormat); int stride = bitmapData.Stride; byte[] byteArray = new byte[bitmapData.Stride * bitmap.Height]; Parallel.For ( 0, width, column => { int sourceColumn = column; if(roll) { sourceColumn += width - rollOffset % width; if(sourceColumn >= width) { sourceColumn -= width; } } for(int row = 0; row < height; row++) { double value = fftList[sourceColumn][row]; if(db) { value = 20 * Math.Log10(value * dbScale + 1); } value *= intensity; value = Math.Min(value, 255); int bytePosition = (height - 1 - row) * stride + column; byteArray[bytePosition] = (byte)value; } } ); Marshal.Copy(byteArray, 0, bitmapData.Scan0, byteArray.Length); bitmap.UnlockBits(bitmapData); return bitmap; } #endregion #region 수직 스케일 비트맵 구하기 - GetVerticalScaleBitmap(width, setting, hzOffset, tickSize, reduction) /// <summary> /// 수직 스케일 비트맵 구하기 /// </summary> /// <param name="width">너비</param> /// <param name="setting">설정</param> /// <param name="hzOffset">HZ 오프셋</param> /// <param name="tickSize">틱 크기</param> /// <param name="reduction">축소</param> /// <returns>수직 스케일 비트맵</returns> public static Bitmap GetVerticalScaleBitmap(int width, Setting setting, int hzOffset = 0, int tickSize = 3, int reduction = 1) { double hzTick = 1; int minimumSpacingPixel = 50; double[] multiplierArray = { 2, 2.5, 2 }; int multiplier = 0; while(true) { hzTick *= multiplierArray[multiplier++ % multiplierArray.Length]; double tickCount = setting.FrequencySpan / hzTick; double pixelBetweenTicks = setting.Height / tickCount; if(pixelBetweenTicks >= minimumSpacingPixel * reduction) { break; } } Bitmap bitmap = new Bitmap(width, setting.Height / reduction, PixelFormat.Format32bppPArgb); using(Graphics graphics = Graphics.FromImage(bitmap)) using(Pen pen = new Pen(Color.Black)) using(SolidBrush brush = new SolidBrush(Color.Black)) using(Font font = new Font("나눔고딕코딩", 12)) using(StringFormat stringFormat = new StringFormat() { LineAlignment = StringAlignment.Center }) { graphics.Clear(Color.White); List<double> frequencyList = new List<double>(); for(double frequency = setting.MinimumFrequency; frequency <= setting.MaximumFrequency; frequency += hzTick) { frequencyList.Add(frequency); } if(frequencyList.Count >= 2) { frequencyList.RemoveAt(0); frequencyList.RemoveAt(frequencyList.Count - 1); } foreach(double frequency in frequencyList) { int y = setting.GetPixelY(frequency) / reduction; graphics.DrawLine(pen, 0, y, tickSize, y); graphics.DrawString($"{frequency + hzOffset:N0} Hz", font, brush, tickSize, y, stringFormat); } } return bitmap; } #endregion } } |
▶ ColorMap.cs
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using System; using System.Drawing; using System.Drawing.Imaging; using System.Linq; namespace TestLibrary { /// <summary> /// 색상 맵 /// </summary> public class ColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 아르고 색상 맵 - Argo /// <summary> /// 아르고 색상 맵 /// </summary> public static ColorMap Argo => new ColorMap(new ArgoColorMap()); #endregion #region 청색 색상 맵 - Blue /// <summary> /// 청색 색상 맵 /// </summary> public static ColorMap Blue => new ColorMap(new BlueColorMap()); #endregion #region 회색조 색상 맵 - Grayscale /// <summary> /// 회색조 색상 맵 /// </summary> public static ColorMap Grayscale => new ColorMap(new GrayscaleColorMap()); #endregion #region 회색조 반전 색상 맵 - GrayscaleReversed /// <summary> /// 회색조 반전 색상 맵 /// </summary> public static ColorMap GrayscaleReversed => new ColorMap(new GrayscaleReversedColorMap()); #endregion #region 녹색 색상 맵 - Green /// <summary> /// 녹색 색상 맵 /// </summary> public static ColorMap Green => new ColorMap(new GreenColorMap()); #endregion #region 인페르노 색상 맵 - Inferno /// <summary> /// 인페르노 색상 맵 /// </summary> public static ColorMap Inferno => new ColorMap(new InfernoColorMap()); #endregion #region 로포라 색상 맵 - Lopora /// <summary> /// 로포라 색상 맵 /// </summary> public static ColorMap Lopora => new ColorMap(new LoporaColorMap()); #endregion #region 마그마 색상 맵 - Magma /// <summary> /// 마그마 색상 맵 /// </summary> public static ColorMap Magma => new ColorMap(new MagmaColorMap()); #endregion #region 플라스마 색상 맵 - Plasma /// <summary> /// 플라스마 색상 맵 /// </summary> public static ColorMap Plasma => new ColorMap(new PlasmaColorMap()); #endregion #region 터보 색상 맵 - Turbo /// <summary> /// 터보 색상 맵 /// </summary> public static ColorMap Turbo => new ColorMap(new TurboColorMap()); #endregion #region 비리디스 색상 맵 - Viridis /// <summary> /// 비리디스 색상 맵 /// </summary> public static ColorMap Viridis => new ColorMap(new ViridisColorMap()); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Instance //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 색상 맵 /// </summary> private readonly IColorMap colorMap; /// <summary> /// 명칭 /// </summary> public readonly string Name; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - ColorMap(colorMap) /// <summary> /// 생성자 /// </summary> /// <param name="colorMap">색상 맵</param> public ColorMap(IColorMap colorMap) { this.colorMap = colorMap ?? new GrayscaleColorMap(); Name = this.colorMap.GetType().Name; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 색상 맵 배열 구하기 - GetColorMapArray() /// <summary> /// 색상 맵 배열 구하기 /// </summary> /// <returns>색상 맵 배열</returns> public static ColorMap[] GetColorMapArray() => typeof(ColorMap).GetProperties() .Select(x => (ColorMap)x.GetValue(x.Name)) .ToArray(); #endregion #region 색상 맵 명칭 배열 구하기 - GetColorMapNameArray() /// <summary> /// 색상 맵 명칭 배열 구하기 /// </summary> /// <returns>색상 맵 명칭 배열</returns> public static string[] GetColorMapNameArray() { return GetColorMapArray().Select(x => x.Name).ToArray(); } #endregion #region 색상 맵 구하기 - GetColorMap(colorMapName) /// <summary> /// 색상 맵 구하기 /// </summary> /// <param name="colorMapName">색상 맵 명칭</param> /// <returns>색상 맵</returns> public static ColorMap GetColorMap(string colorMapName) { foreach(ColorMap colorMap in GetColorMapArray()) { if(string.Equals(colorMap.Name, colorMapName, StringComparison.InvariantCultureIgnoreCase)) { return colorMap; } } throw new ArgumentException($"ColorMap does not exist : {colorMapName}"); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Instance //////////////////////////////////////////////////////////////////////////////// Public #region 문자열 구하기 - ToString() /// <summary> /// 문자열 구하기 /// </summary> /// <returns>문자열</returns> public override string ToString() { return $"ColorMap {Name}"; } #endregion #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB 튜플</returns> public (byte r, byte g, byte b) GetRGB(byte value) { return this.colorMap.GetRGB(value); } #endregion #region RGB 구하기 - GetRGB(fraction) /// <summary> /// RGB 구하기 /// </summary> /// <param name="fraction">분수</param> /// <returns>RGB 튜플</returns> public (byte r, byte g, byte b) GetRGB(double fraction) { fraction = Math.Max(fraction, 0); fraction = Math.Min(fraction, 1); return this.colorMap.GetRGB((byte)(fraction * 255)); } #endregion #region 32비트 정수 구하기 - GetInt32(value) /// <summary> /// 32비트 정수 구하기 /// </summary> /// <param name="value">값</param> /// <returns>32비트 정수</returns> public int GetInt32(byte value) { var (r, g, b) = GetRGB(value); return 255 << 24 | r << 16 | g << 8 | b; } #endregion #region 32비트 정수 구하기 - GetInt32(fraction) /// <summary> /// 32비트 정수 구하기 /// </summary> /// <param name="fraction">분수</param> /// <returns>32비트 정수</returns> public int GetInt32(double fraction) { var (r, g, b) = GetRGB(fraction); return 255 << 24 | r << 16 | g << 8 | b; } #endregion #region 색상 구하기 - GetColor(value) /// <summary> /// 색상 구하기 /// </summary> /// <param name="value">값</param> /// <returns>색상</returns> public Color GetColor(byte value) { return Color.FromArgb(GetInt32(value)); } #endregion #region 색상 구하기 - GetColor(fraction) /// <summary> /// 색상 구하기 /// </summary> /// <param name="fraction">분수</param> /// <returns>색상</returns> public Color GetColor(double fraction) { return Color.FromArgb(GetInt32(fraction)); } #endregion #region 비트맵 팔레트 설정하기 - SetBitmapPalette(bitmap) /// <summary> /// 비트맵 팔레트 설정하기 /// </summary> /// <param name="bitmap">비트맵</param> public void SetBitmapPalette(Bitmap bitmap) { ColorPalette palette = bitmap.Palette; for(int i = 0; i < 256; i++) { palette.Entries[i] = GetColor((byte)i); } bitmap.Palette = palette; } #endregion } } |
▶ IColorMap.cs
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namespace TestLibrary { /// <summary> /// 색상 맵 인터페이스 /// </summary> public interface IColorMap { //////////////////////////////////////////////////////////////////////////////////////////////////// Method #region RGB 구하기 - GetRGB(value) /// <summary> /// RGB 구하기 /// </summary> /// <param name="value">값</param> /// <returns>RGB 튜플</returns> (byte r, byte g, byte b) GetRGB(byte value); #endregion } } |
▶ Setting.cs
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using System; using FftSharp; using FftSharp.Windows; namespace TestLibrary { /// <summary> /// 설정 /// </summary> public class Setting { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 샘플 비율 /// </summary> public readonly int SampleRate; /// <summary> /// FFT 크기 /// </summary> public readonly int FFTSize; /// <summary> /// FFT 길이 (단위 : 초) /// </summary> public readonly double FFTLength; /// <summary> /// 주파수 나이퀴스트 /// </summary> public readonly double FrequencyNyquist; /// <summary> /// 픽셀당 HZ /// </summary> public readonly double HZPerPixel; /// <summary> /// HZ당 픽셀 /// </summary> public readonly double PixelPerHZ; /// <summary> /// FFT 인덱스 1 /// </summary> public readonly int FFTIndex1; /// <summary> /// FFT 인덱스 2 /// </summary> public readonly int FFTIndex2; /// <summary> /// 최소 주파수 /// </summary> public readonly double MinimumFrequency; /// <summary> /// 최대 주파수 /// </summary> public readonly double MaximumFrequency; /// <summary> /// 주파수 범위 /// </summary> public readonly double FrequencySpan; /// <summary> /// 높이 /// </summary> public readonly int Height; /// <summary> /// HZ 오프셋 /// </summary> public int HZOffset; /// <summary> /// 윈도우 배열 /// </summary> public readonly double[] WindowArray; /// <summary> /// 단계 크기 /// </summary> public readonly int StepSize; /// <summary> /// 단계 길이 (단위 : 초) /// </summary> public readonly double StepLength; /// <summary> /// 단계 오버랩 (분수) /// </summary> public readonly double StepOverlapFraction; /// <summary> /// 단계 오버랩 (단위 : 초) /// </summary> public readonly double StepOverlap; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - Setting(sampleRate, fftSize, stepSize, minimumFrequency, maximumFrequency, hzOffset) /// <summary> /// 생성자 /// </summary> /// <param name="sampleRate">샘플 비율</param> /// <param name="fftSize">FFT 크기</param> /// <param name="stepSize">단계 크기</param> /// <param name="minimumFrequency">최소 주파수</param> /// <param name="maximumFrequency">최대 주파수</param> /// <param name="hzOffset">HZ 오프셋</param> public Setting(int sampleRate, int fftSize, int stepSize, double minimumFrequency, double maximumFrequency, int hzOffset) { if(Transform.IsPowerOfTwo(fftSize) == false) { throw new ArgumentException("FFT size must be a power of 2"); } SampleRate = sampleRate; FFTSize = fftSize; StepSize = stepSize; FFTLength = (double)fftSize / sampleRate; minimumFrequency = Math.Max(minimumFrequency, 0); FrequencyNyquist = sampleRate / 2; HZPerPixel = (double)sampleRate / fftSize; PixelPerHZ = (double)fftSize / sampleRate; FFTIndex1 = (minimumFrequency == 0) ? 0 : (int)(minimumFrequency / HZPerPixel); FFTIndex2 = (maximumFrequency >= FrequencyNyquist) ? fftSize / 2 : (int)(maximumFrequency / HZPerPixel); Height = FFTIndex2 - FFTIndex1; MinimumFrequency = FFTIndex1 * HZPerPixel; MaximumFrequency = FFTIndex2 * HZPerPixel; FrequencySpan = MaximumFrequency - MinimumFrequency; HZOffset = hzOffset; StepLength = (double)StepSize / sampleRate; WindowArray = new Hanning().Create(fftSize); StepOverlap = FFTLength - StepLength; StepOverlapFraction = StepOverlap / FFTLength; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 픽셀 Y 구하기 - GetPixelY(frequency) /// <summary> /// 픽셀 Y 구하기 /// </summary> /// <param name="frequency">주파수</param> /// <returns>픽셀 Y</returns> public int GetPixelY(double frequency) { return (int)(Height - (frequency - MinimumFrequency + HZPerPixel) * PixelPerHZ - 1); } #endregion } } |
▶ SpectrogramFileFormat.cs
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using System; using System.Collections.Generic; using System.Drawing; using System.IO; using System.Text; using FftSharp; namespace TestLibrary { /// <summary> /// 스펙트로그램 파일 포맷 /// </summary> public class SpectrogramFileFormat { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 메이저 버전 /// </summary> public readonly byte MajorVersion = 1; /// <summary> /// 마이너 버전 /// </summary> public readonly byte MinorVersion = 1; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region 파일 경로 - FilePath /// <summary> /// 파일 경로 /// </summary> public string FilePath { get; private set; } #endregion #region 샘플 비율 - SampleRate /// <summary> /// 샘플 비율 /// </summary> public int SampleRate { get; private set; } #endregion #region 단계 크기 - StepSize /// <summary> /// 단계 크기 /// </summary> public int StepSize { get; private set; } #endregion #region 너비 - Width /// <summary> /// 너비 /// </summary> public int Width { get; private set; } #endregion #region FFT 크기 - FFTSize /// <summary> /// FFT 크기 /// </summary> public int FFTSize { get; private set; } #endregion #region FFT 첫번째 인덱스 - FFTFirstIndex /// <summary> /// FFT 첫번째 인덱스 /// </summary> public int FFTFirstIndex { get; private set; } #endregion #region 높이 - Height /// <summary> /// 높이 /// </summary> public int Height { get; private set; } #endregion #region HZ 오프셋 - HZOffset /// <summary> /// HZ 오프셋 /// </summary> public int HZOffset { get; private set; } #endregion #region MEL BIN 카운트 - MELBINCount /// <summary> /// MEL BIN 카운트 /// </summary> public int MELBINCount { get; private set; } #endregion #region 데시빌 카운트 - DecibelCount /// <summary> /// 데시빌 카운트 /// </summary> public bool DecibelCount { get; private set; } #endregion #region MEL 여부 - IsMEL /// <summary> /// MEL 여부 /// </summary> public bool IsMEL { get { return MELBINCount > 0; } } #endregion #region FFT 리스트 - FFTList /// <summary> /// FFT 리스트 /// </summary> public List<double[]> FFTList { get; private set; } #endregion #region 이미지 너비 - ImageWidth /// <summary> /// 이미지 너비 /// </summary> public int ImageWidth { get { return (FFTList is null) ? 0 : FFTList.Count; } } #endregion #region 이미지 높이 - ImageHeight /// <summary> /// 이미지 높이 /// </summary> public int ImageHeight { get { return (FFTList is null) ? 0 : FFTList[0].Length; } } #endregion #region 시간 배열 - TimeArray /// <summary> /// 시간 배열 /// </summary> public double[] TimeArray { get; private set; } #endregion #region 주파수 배열 - FrequencyArray /// <summary> /// 주파수 배열 /// </summary> public double[] FrequencyArray { get; private set; } #endregion #region MEL 배열 - MELArray /// <summary> /// MEL 배열 /// </summary> public double[] MELArray { get; private set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - SpectrogramFileFormat() /// <summary> /// 생성자 /// </summary> public SpectrogramFileFormat() { } #endregion #region 생성자 - SpectrogramFileFormat(filePath) /// <summary> /// 생성자 /// </summary> /// <param name="filePath">파일 경로</param> public SpectrogramFileFormat(string filePath) { Load(filePath); CalculateTimes(); CalculateFrequencies(); } #endregion #region 생성자 - SpectrogramFileFormat(generator, melBinCount) /// <summary> /// 생성자 /// </summary> /// <param name="generator">스펙트로그램 제너레이터</param> /// <param name="melBinCount">MEL BIN 카운트</param> public SpectrogramFileFormat(SpectrogramGenerator generator, int melBinCount = 0) { SampleRate = generator.SampleRate; StepSize = generator.StepSize; Width = generator.Width; FFTSize = generator.FFTSize; FFTFirstIndex = generator.NextColumnIndex; Height = generator.Height; HZOffset = generator.HZOffset; MELBINCount = melBinCount; FFTList = (melBinCount > 0) ? generator.GetMELFFTArrayList(melBinCount) : generator.GetFFTArrayList(); CalculateTimes(); CalculateFrequencies(); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 문자열 구하기 - ToString() /// <summary> /// 문자열 구하기 /// </summary> /// <returns>문자열</returns> public override string ToString() { return $"SFF {ImageWidth}X{ImageHeight}"; } #endregion #region 비트맵 구하기 - GetBitmap(colorMap, intensity, db) /// <summary> /// 비트맵 구하기 /// </summary> /// <param name="colorMap">색상 맵</param> /// <param name="intensity">강도</param> /// <param name="db">데시빌 여부</param> /// <returns>비트맵</returns> public Bitmap GetBitmap(ColorMap colorMap = null, double intensity = 1, bool db = false) { colorMap = colorMap ?? ColorMap.Viridis; return BitmapHelper.GetBitmap(FFTList, colorMap, intensity, db); } #endregion #region 로드하기 - Load(filePath) /// <summary> /// 로드하기 /// </summary> /// <param name="filePath">파일 경로</param> public void Load(string filePath) { FilePath = Path.GetFullPath(filePath); byte[] byteArray = File.ReadAllBytes(filePath); int magicNumber = BitConverter.ToInt32(byteArray, 0); if(magicNumber != 1179014099) { throw new InvalidDataException("not a valid SFF file"); } SampleRate = BitConverter.ToInt32(byteArray, 42); StepSize = BitConverter.ToInt32(byteArray, 46); Width = BitConverter.ToInt32(byteArray, 50); FFTSize = BitConverter.ToInt32(byteArray, 54); FFTFirstIndex = BitConverter.ToInt32(byteArray, 58); Height = BitConverter.ToInt32(byteArray, 62); HZOffset = BitConverter.ToInt32(byteArray, 66); MELBINCount = BitConverter.ToInt32(byteArray, 84); byte valueCountPerPoint = byteArray[70]; bool isComplex = valueCountPerPoint == 2; if(isComplex) { throw new NotImplementedException("complex data is not yet supported"); } byte byteCountPerValue = byteArray[71]; DecibelCount = byteArray[72] == 1; int firstDataByte = (int)BitConverter.ToUInt32(byteArray, 80); MELBINCount = BitConverter.ToInt32(byteArray, 84); int FFTHeight = BitConverter.ToInt32(byteArray, 88); int FFTWidth = BitConverter.ToInt32(byteArray, 92); FFTList = new List<double[]>(); int byteCountPerPoint = byteCountPerValue * valueCountPerPoint; int byteCountPerColumn = FFTHeight * byteCountPerPoint; for(int x = 0; x < FFTWidth; x++) { FFTList.Add(new double[FFTHeight]); int columnOffset = byteCountPerColumn * x; for(int y = 0; y < FFTHeight; y++) { int rowOffset = y * byteCountPerPoint; int valueOffset = firstDataByte + columnOffset + rowOffset; double value = BitConverter.ToDouble(byteArray, valueOffset); FFTList[x][y] = value; } } } #endregion #region 저장하기 - Save(filePath) /// <summary> /// 저장하기 /// </summary> /// <param name="filePath">파일 경로</param> public void Save(string filePath) { FilePath = Path.GetFullPath(filePath); byte[] headerArray = new byte[256]; headerArray[0] = 211; headerArray[1] = (byte)'S'; headerArray[2] = (byte)'F'; headerArray[3] = (byte)'F'; headerArray[4] = (byte)'\r'; headerArray[5] = (byte)'\n'; headerArray[6] = (byte)' '; headerArray[7] = (byte)'\n'; int magicNumber = BitConverter.ToInt32(headerArray, 0); if(magicNumber != 1179014099) { throw new InvalidDataException("magic number for SFF files is 1179014099"); } string fileInfo = $"SFF {MajorVersion}.{MinorVersion}\r\n"; byte[] fileInfoByteArray = Encoding.UTF8.GetBytes(fileInfo); if(fileInfoByteArray.Length > 32) { throw new InvalidDataException("file info cannot exceed 32 bytes"); } Array.Copy(fileInfoByteArray, 0, headerArray, 8, fileInfoByteArray.Length); headerArray[40] = MajorVersion; headerArray[41] = MinorVersion; Array.Copy(BitConverter.GetBytes(SampleRate), 0, headerArray, 42, 4); Array.Copy(BitConverter.GetBytes(StepSize ), 0, headerArray, 46, 4); Array.Copy(BitConverter.GetBytes(Width ), 0, headerArray, 50, 4); Array.Copy(BitConverter.GetBytes(FFTSize ), 0, headerArray, 54, 4); Array.Copy(BitConverter.GetBytes(FFTFirstIndex), 0, headerArray, 58, 4); Array.Copy(BitConverter.GetBytes(Height ), 0, headerArray, 62, 4); Array.Copy(BitConverter.GetBytes(HZOffset ), 0, headerArray, 66, 4); byte valueCountPerPoint = 1; byte byteCountPerValue = 8; byte decibelUnitCount = 0; byte dataExtraByte = 0; headerArray[70] = valueCountPerPoint; headerArray[71] = byteCountPerValue; headerArray[72] = decibelUnitCount; headerArray[73] = dataExtraByte; Array.Copy(BitConverter.GetBytes(MELBINCount), 0, headerArray, 84, 4); Array.Copy(BitConverter.GetBytes(ImageHeight), 0, headerArray, 88, 4); Array.Copy(BitConverter.GetBytes(ImageWidth ), 0, headerArray, 92, 4); int firstDataByte = headerArray.Length; Array.Copy(BitConverter.GetBytes(firstDataByte), 0, headerArray, 80, 4); int dataPointCount = ImageHeight * ImageWidth; int byteCountPerPoint = byteCountPerValue * valueCountPerPoint; byte[] fileByteArray = new byte[headerArray.Length + dataPointCount * byteCountPerPoint]; Array.Copy(headerArray, 0, fileByteArray, 0, headerArray.Length); int byteCountPerColumn = ImageHeight * byteCountPerPoint; for(int x = 0; x < ImageWidth; x++) { int columnOffset = byteCountPerColumn * x; for(int y = 0; y < ImageHeight; y++) { int rowOffset = y * byteCountPerPoint; int valueOffset = firstDataByte + columnOffset + rowOffset; double value = FFTList[x][y]; Array.Copy(BitConverter.GetBytes(value), 0, fileByteArray, valueOffset, 8); } } File.WriteAllBytes(filePath, fileByteArray); } #endregion #region 픽셀 정보 구하기 - GetPixelInformation(x, y) /// <summary> /// 픽셀 정보 구하기 /// </summary> /// <param name="x">X</param> /// <param name="y">Y</param> /// <returns>(시간(단위 : 초), 주파수(단위 : HZ), 진도) 튜플</returns> public (double timeSecond, double frequencyHZ, double magnitude) GetPixelInformation(int x, int y) { double timeSecond = (double)x * StepSize / SampleRate; double maximumFrequency = SampleRate / 2; double maximumMEL = Transform.MelFromFreq(maximumFrequency); double fraction = (ImageHeight - y) / (double)ImageHeight; double frequency = IsMEL ? Transform.MelToFreq(fraction * maximumMEL) : fraction * maximumFrequency; double magnitude = double.NaN; try { magnitude = FFTList[x][ImageHeight - y - 1]; } catch { } return (timeSecond, frequency, magnitude); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 시간 계산하기 - CalculateTimes() /// <summary> /// 시간 계산하기 /// </summary> private void CalculateTimes() { TimeArray = new double[ImageWidth]; double step = (double)StepSize / SampleRate; for(int i = 0; i < ImageWidth; i++) { TimeArray[i] = i * step; } } #endregion #region 주파수 계산하기 - CalculateFrequencies() /// <summary> /// 주파수 계산하기 /// </summary> private void CalculateFrequencies() { FrequencyArray = new double[ImageHeight]; MELArray = new double[ImageHeight]; double maximumFrequency = SampleRate / 2; double maximumMEL = Transform.MelFromFreq(maximumFrequency); for(int y = 0; y < ImageHeight; y++) { double fraction = (ImageHeight - y) / (double)ImageHeight; if(IsMEL) { MELArray[y] = fraction * maximumMEL; FrequencyArray[y] = Transform.MelToFreq(MELArray[y]); } else { FrequencyArray[y] = fraction * maximumFrequency; MELArray[y] = Transform.MelFromFreq(FrequencyArray[y]); } } } #endregion } } |
▶ SpectrogramGenerator.cs
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using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Threading.Tasks; using FftSharp; namespace TestLibrary { /// <summary> /// 스펙트로그램 제너레이터 /// </summary> public class SpectrogramGenerator { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 색상 맵 /// </summary> public ColorMap Colormap = ColorMap.Viridis; #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 설정 /// </summary> private readonly Setting Setting; /// <summary> /// FFT 배열 리스트 /// </summary> private readonly List<double[]> FFTArrayList = new List<double[]>(); /// <summary> /// 미처리 FFT 리스트 /// </summary> private readonly List<double> UnprocessedFFTList; /// <summary> /// 롤 오프셋 /// </summary> private int rollOffset = 0; /// <summary> /// 고정 너비 /// </summary> private int fixedWidth = 0; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 너비 - Width /// <summary> /// 너비 /// </summary> public int Width { get => FFTArrayList.Count; } #endregion #region 높이 - Height /// <summary> /// 높이 /// </summary> public int Height { get => Setting.Height; } #endregion #region FFT 크기 - FFTSize /// <summary> /// FFT 크기 /// </summary> public int FFTSize { get => Setting.FFTSize; } #endregion #region 픽셀당 HZ - HZPerPixel /// <summary> /// 픽셀당 HZ /// </summary> public double HZPerPixel { get => Setting.HZPerPixel; } #endregion #region 픽셀당 초 카운트 - SecondCountPerPixel /// <summary> /// 픽셀당 초 카운트 /// </summary> public double SecondCountPerPixel { get => Setting.StepLength; } #endregion #region 처리할 FFT 카운트 - FFTCountToProcess /// <summary> /// 처리할 FFT 카운트 /// </summary> public int FFTCountToProcess { get => (UnprocessedFFTList.Count - Setting.FFTSize) / Setting.StepSize; } #endregion #region 처리 완료 FFT 카운트 - FFTCountProcessed /// <summary> /// 처리 완료 FFT 카운트 /// </summary> public int FFTCountProcessed { get; private set; } #endregion #region 다음 컬럼 인덱스 - NextColumnIndex /// <summary> /// 다음 컬럼 인덱스 /// </summary> public int NextColumnIndex { get => (FFTCountProcessed + rollOffset) % Width; } #endregion #region HZ 오프셋 - HZOffset /// <summary> /// HZ 오프셋 /// </summary> public int HZOffset { get => Setting.HZOffset; set { Setting.HZOffset = value; } } #endregion #region 샘플 비율 - SampleRate /// <summary> /// 샘플 비율 /// </summary> public int SampleRate { get => Setting.SampleRate; } #endregion #region 단계 크기 - StepSize /// <summary> /// 단계 크기 /// </summary> public int StepSize { get => Setting.StepSize; } #endregion #region 최대 주파수 - MaximumFrequency /// <summary> /// 최대 주파수 /// </summary> public double MaximumFrequency { get => Setting.MaximumFrequency; } #endregion #region 최소 주파수 - MinimumFrequency /// <summary> /// 최소 주파수 /// </summary> public double MinimumFrequency { get => Setting.MinimumFrequency; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - SpectrogramGenerator(sampleRate, fftSize, stepSize, minimumFrequency, maximumFrequency, fixedWidth, hzOffset, initialAudioList) /// <summary> /// 생성자 /// </summary> /// <param name="sampleRate">샘플 비율</param> /// <param name="fftSize">FFT 크기</param> /// <param name="stepSize">단계 크기</param> /// <param name="minimumFrequency">최소 주파수</param> /// <param name="maximumFrequency">최대 주파수</param> /// <param name="fixedWidth">고정 너비</param> /// <param name="hzOffset">HZ 오프셋</param> /// <param name="initialAudioList">초기 오디오 리스트</param> public SpectrogramGenerator ( int sampleRate, int fftSize, int stepSize, double minimumFrequency = 0, double maximumFrequency = double.PositiveInfinity, int? fixedWidth = null, int hzOffset = 0, List<double> initialAudioList = null ) { Setting = new Setting(sampleRate, fftSize, stepSize, minimumFrequency, maximumFrequency, hzOffset); UnprocessedFFTList = initialAudioList ?? new List<double>(); if(fixedWidth.HasValue) { SetFixedWidth(fixedWidth.Value); } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 문자열 구하기 - ToString() /// <summary> /// 문자열 구하기 /// </summary> /// <returns>문자열</returns> public override string ToString() { double processedSampleCount = FFTArrayList.Count * Setting.StepSize + Setting.FFTSize; double processedSecondCount = processedSampleCount / Setting.SampleRate; string processedTime = (processedSecondCount < 60) ? $"{processedSecondCount:N2} 초" : $"{processedSecondCount / 60.0:N2} 분"; return $"스펙트로그램 ({Width}, {Height})" + $"\n 수직 ({Height} 픽셀) : {Setting.MinimumFrequency:N0} - {Setting.MaximumFrequency:N0} HZ, " + $"FFT 크기 : {Setting.FFTSize:N0} 샘플 수, {Setting.HZPerPixel:N2} HZ/픽셀" + $"\n 수평 ({Width} 픽셀) : {processedTime}, 윈도우 : {Setting.FFTLength:N2} 초, " + $"단계 : {Setting.StepLength:N2} 초, 오버랩 : {Setting.StepOverlapFraction * 100:N0}%"; } #endregion #region 윈도우 설정하기 - SetWindow(newWindowArray) /// <summary> /// 윈도우 설정하기 /// </summary> /// <param name="newWindowArray">신규 윈도우 배열</param> public void SetWindow(double[] newWindowArray) { if(newWindowArray.Length > Setting.FFTSize) { throw new ArgumentException("window length cannot exceed FFT size"); } for(int i = 0; i < Setting.FFTSize; i++) { Setting.WindowArray[i] = 0; } int offset = (Setting.FFTSize - newWindowArray.Length) / 2; Array.Copy(newWindowArray, 0, Setting.WindowArray, offset, newWindowArray.Length); } #endregion #region 추가하기 - Add(audioEnumerable, process) /// <summary> /// 추가하기 /// </summary> /// <param name="audioEnumerable">오디오 열거 가능형</param> /// <param name="process">처리 여부</param> public void Add(IEnumerable<double> audioEnumerable, bool process = true) { UnprocessedFFTList.AddRange(audioEnumerable); if(process) { Process(); } } #endregion #region 롤 리셋하기 - ResetRoll(offset) /// <summary> /// 롤 리셋하기 /// </summary> /// <param name="offset">오프셋</param> public void ResetRoll(int offset = 0) { this.rollOffset = -FFTCountProcessed + offset; } #endregion #region 처리하기 - Process() /// <summary> /// 처리하기 /// </summary> /// <returns>처리 결과</returns> public double[][] Process() { if(FFTCountToProcess < 1) { return null; } int newFFTCount = FFTCountToProcess; double[][] newFFTArray = new double[newFFTCount][]; Parallel.For ( 0, newFFTCount, newFFTIndex => { Complex[] bufferArray = new Complex[Setting.FFTSize]; int sourceIndex = newFFTIndex * Setting.StepSize; for(int i = 0; i < Setting.FFTSize; i++) { bufferArray[i].Real = UnprocessedFFTList[sourceIndex + i] * Setting.WindowArray[i]; } Transform.FFT(bufferArray); newFFTArray[newFFTIndex] = new double[Setting.Height]; for(int i = 0; i < Setting.Height; i++) { newFFTArray[newFFTIndex][i] = bufferArray[Setting.FFTIndex1 + i].Magnitude / Setting.FFTSize; } } ); foreach(var newFFT in newFFTArray) { FFTArrayList.Add(newFFT); } FFTCountProcessed += newFFTArray.Length; UnprocessedFFTList.RemoveRange(0, newFFTCount * Setting.StepSize); PadOrTrimForFixedWidth(); return newFFTArray; } #endregion #region MEL FFT 배열 리스트 구하기 - GetMELFFTArrayList(melBINCount) /// <summary> /// MEL FFT 배열 리스트 구하기 /// </summary> /// <param name="melBINCount">MEL BIN 카운트</param> /// <returns>MEL FFT 배열 리스트</returns> public List<double[]> GetMELFFTArrayList(int melBINCount) { if(Setting.MinimumFrequency != 0) { throw new InvalidOperationException("cannot get Mel spectrogram unless minimum frequency is 0Hz"); } List<double[]> melFFTArrayList = new List<double[]>(); foreach(double[] fftArray in FFTArrayList) { melFFTArrayList.Add(Transform.MelScale(fftArray, SampleRate, melBINCount)); } return melFFTArrayList; } #endregion #region 비트맵 구하기 - GetBitmap(intensity, db, dbScale, roll) /// <summary> /// 비트맵 구하기 /// </summary> /// <param name="intensity">강도</param> /// <param name="db">데시빌 여부</param> /// <param name="dbScale">데시빌 스케일</param> /// <param name="roll">롤 여부</param> /// <returns>비트맵</returns> public Bitmap GetBitmap(double intensity = 1, bool db = false, double dbScale = 1, bool roll = false) => BitmapHelper.GetBitmap(FFTArrayList, Colormap, intensity, db, dbScale, roll, NextColumnIndex); #endregion #region MEL 비트맵 구하기 - GetMELBitmap(melBINCount, intensity, db, dbScale, roll) /// <summary> /// MEL 비트맵 구하기 /// </summary> /// <param name="melBINCount">MEL BIN 카운트</param> /// <param name="intensity">강도</param> /// <param name="db">데시빌 여부</param> /// <param name="dbScale">데시빌 스케일</param> /// <param name="roll">롤 여부</param> /// <returns>MEL 비트맵</returns> public Bitmap GetMELBitmap(int melBINCount = 25, double intensity = 1, bool db = false, double dbScale = 1, bool roll = false) => BitmapHelper.GetBitmap(GetMELFFTArrayList(melBINCount), Colormap, intensity, db, dbScale, roll, NextColumnIndex); #endregion #region 이미지 저장하기 - SaveImage(filePath, intensity, db, dbScale, roll) /// <summary> /// 이미지 저장하기 /// </summary> /// <param name="filePath">파일 경로</param> /// <param name="intensity">강도</param> /// <param name="db">데시빌 여부</param> /// <param name="dbScale">데시빌 스케일</param> /// <param name="roll">롤 여부</param> public void SaveImage(string filePath, double intensity = 1, bool db = false, double dbScale = 1, bool roll = false) { if(FFTArrayList.Count == 0) { throw new InvalidOperationException("Spectrogram contains no data. Use Add() to add signal data."); } string extension = Path.GetExtension(filePath).ToLower(); ImageFormat imageFormat; if(extension == ".bmp") { imageFormat = ImageFormat.Bmp; } else if(extension == ".png") { imageFormat = ImageFormat.Png; } else if(extension == ".jpg" || extension == ".jpeg") { imageFormat = ImageFormat.Jpeg; } else if(extension == ".gif") { imageFormat = ImageFormat.Gif; } else { throw new ArgumentException("unknown file extension"); } BitmapHelper.GetBitmap(FFTArrayList, Colormap, intensity, db, dbScale, roll, NextColumnIndex).Save(filePath, imageFormat); } #endregion #region 최대 비트맵 구하기 - GetMaximumBitmap(intensity, db, dbScale, roll, reduction) /// <summary> /// 최대 비트맵 구하기 /// </summary> /// <param name="intensity">강도</param> /// <param name="db">데시빌 여부</param> /// <param name="dbScale">데시빌 스케일</param> /// <param name="roll">롤 여부</param> /// <param name="reduction">축소</param> /// <returns>최대 비트맵</returns> public Bitmap GetMaximumBitmap(double intensity = 1, bool db = false, double dbScale = 1, bool roll = false, int reduction = 4) { List<double[]> fftArrayList = new List<double[]>(); for(int i = 0; i < FFTArrayList.Count; i++) { double[] valueArray1 = FFTArrayList[i]; double[] valueArray2 = new double[valueArray1.Length / reduction]; for(int j = 0; j < valueArray2.Length; j++) { for(int k = 0; k < reduction; k++) { valueArray2[j] = Math.Max(valueArray2[j], valueArray1[j * reduction + k]); } } fftArrayList.Add(valueArray2); } return BitmapHelper.GetBitmap(fftArrayList, Colormap, intensity, db, dbScale, roll, NextColumnIndex); } #endregion #region 데이터 저장하기 - SaveData(filePath, melBINCount) /// <summary> /// 데이터 저장하기 /// </summary> /// <param name="filePath">파일 경로</param> /// <param name="melBINCount">MEL BIN 카운트</param> public void SaveData(string filePath, int melBINCount = 0) { if(!filePath.EndsWith(".sff", StringComparison.OrdinalIgnoreCase)) { filePath += ".sff"; } new SpectrogramFileFormat(this, melBINCount).Save(filePath); } #endregion #region 고정 너비 설정하기 - SetFixedWidth(width) /// <summary> /// 고정 너비 설정하기 /// </summary> /// <param name="width">너비</param> public void SetFixedWidth(int width) { this.fixedWidth = width; PadOrTrimForFixedWidth(); } #endregion #region 수직 스케일 비트맵 구하기 - GetVerticalScaleBitmap(width, hzOffset, tickSize, reduction) /// <summary> /// 수직 스케일 비트맵 구하기 /// </summary> /// <param name="width">너비</param> /// <param name="hzOffset">HZ 오프셋</param> /// <param name="tickSize">틱 크기</param> /// <param name="reduction">축소</param> /// <returns>수직 스케일 비트맵</returns> public Bitmap GetVerticalScaleBitmap(int width, int hzOffset = 0, int tickSize = 3, int reduction = 1) { return BitmapHelper.GetVerticalScaleBitmap(width, Setting, hzOffset, tickSize, reduction); } #endregion #region 픽셀 Y 구하기 - GetPixelY(frequency, reduction) /// <summary> /// 픽셀 Y 구하기 /// </summary> /// <param name="frequency">주파수</param> /// <param name="reduction">축소</param> /// <returns>픽셀 Y</returns> public int GetPixelY(double frequency, int reduction = 1) { int pixelCountFromZeroHZ = (int)(Setting.PixelPerHZ * frequency / reduction); int pixelCountFromMinimumFrequency = pixelCountFromZeroHZ - Setting.FFTIndex1 / reduction + 1; int pixelRow = Setting.Height / reduction - 1 - pixelCountFromMinimumFrequency; return pixelRow - 1; } #endregion #region FFT 배열 리스트 구하기 - GetFFTArrayList() /// <summary> /// FFT 배열 리스트 구하기 /// </summary> /// <returns>FFT 배열 리스트</returns> public List<double[]> GetFFTArrayList() { return FFTArrayList; } #endregion #region 피크 구하기 - GetPeak(latestFFT) /// <summary> /// 피크 구하기 /// </summary> /// <param name="latestFFT">최신 FFT</param> /// <returns>(주파수 (단위 : HZ), 진도) 튜플</returns> public (double frequencyHZ, double magnitude) GetPeak(bool latestFFT = true) { if(FFTArrayList.Count == 0) { return (double.NaN, double.NaN); } if(latestFFT == false) { throw new NotImplementedException("peak of mean of all FFTs not yet supported"); } double[] frequencyList = FFTArrayList[FFTArrayList.Count - 1]; int peakIndex = 0; double peakMagnitude = 0; for(int i = 0; i < frequencyList.Length; i++) { if(frequencyList[i] > peakMagnitude) { peakMagnitude = frequencyList[i]; peakIndex = i; } } double maximumFrequency = SampleRate / 2; double peakFrequencyFraction = peakIndex / (double)frequencyList.Length; double peakFrequencyHZ = maximumFrequency * peakFrequencyFraction; return (peakFrequencyHZ, peakMagnitude); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 고정 너비용 제거 또는 채우기 - PadOrTrimForFixedWidth() /// <summary> /// 고정 너비용 제거 또는 채우기 /// </summary> private void PadOrTrimForFixedWidth() { if(fixedWidth > 0) { int overhang = Width - fixedWidth; if(overhang > 0) { FFTArrayList.RemoveRange(0, overhang); } while(FFTArrayList.Count < fixedWidth) { FFTArrayList.Insert(0, new double[Height]); } } } #endregion } } |
▶ Tool.cs
|
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using System; using System.Linq; namespace TestLibrary { /// <summary> /// 도구 /// </summary> public static class Tool { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 평균 FFT 배열 구하기 - GetMeanFFTArray(sff, db) /// <summary> /// 평균 FFT 배열 구하기 /// </summary> /// <param name="sff">스펙트로그램 파일 포맷</param> /// <param name="db">데시빌 여부</param> /// <returns>평균 FFT 배열</returns> public static double[] GetMeanFFTArray(SpectrogramFileFormat sff, bool db = false) { double[] meanArray = new double[sff.FFTList[0].Length]; foreach(double[] fftArray in sff.FFTList) { for(int y = 0; y < fftArray.Length; y++) { meanArray[y] += fftArray[y]; } } for(int i = 0; i < meanArray.Length; i++) { meanArray[i] /= sff.FFTList.Count(); } if(db) { for(int i = 0; i < meanArray.Length; i++) { meanArray[i] = 20 * Math.Log10(meanArray[i]); } } if(meanArray[meanArray.Length - 1] <= 0) { meanArray[meanArray.Length - 1] = meanArray[meanArray.Length - 2]; } return meanArray; } #endregion #region 평균 전력 배열 구하기 - GetMeanPower(sff, db) /// <summary> /// 평균 전력 배열 구하기 /// </summary> /// <param name="sff">스펙트로그램 파일 포맷</param> /// <param name="db">데시빌 여부</param> /// <returns>평균 전력 배열</returns> public static double[] GetMeanPower(SpectrogramFileFormat sff, bool db = false) { double[] powerArray = new double[sff.FFTList.Count]; for(int i = 0; i < sff.FFTList.Count; i++) { powerArray[i] = (double)sff.FFTList[i].Sum() / sff.FFTList[i].Length; } if(db) { for(int i = 0; i < powerArray.Length; i++) { powerArray[i] = 20 * Math.Log10(powerArray[i]); } } return powerArray; } #endregion #region 정점 주파수 구하기 - GetPeakFrequency(sff, firstFFTOnly) /// <summary> /// 정점 주파수 구하기 /// </summary> /// <param name="sff">스펙트로그램 파일 포맷</param> /// <param name="firstFFTOnly">첫번째 FFT만 여부</param> /// <returns>정점 주파수</returns> public static double GetPeakFrequency(SpectrogramFileFormat sff, bool firstFFTOnly = false) { double[] frequencyArray = firstFFTOnly ? sff.FFTList[0] : GetMeanFFTArray(sff, false); int peakIndex = 0; double peakPower = 0; for(int i = 0; i < frequencyArray.Length; i++) { if(frequencyArray[i] > peakPower) { peakPower = frequencyArray[i]; peakIndex = i; } } double maximumFrequency = sff.SampleRate / 2; double fraction = peakIndex / (double)sff.ImageHeight; if(sff.MELBINCount > 0) { double maximumMEL = FftSharp.Transform.MelFromFreq(maximumFrequency); return FftSharp.Transform.MelToFreq(fraction * maximumMEL); } else { return fraction * maximumFrequency; } } #endregion #region 피아노 키 구하기 - GetPianoKey(frequency) /// <summary> /// 피아노 키 구하기 /// </summary> /// <param name="frequency">주파수 (단위 : HZ)</param> /// <returns>피아노 키</returns> public static int GetPianoKey(double frequency) { double pianoKey = (39.86 * Math.Log10(frequency / 440)) + 49; return (int)Math.Round(pianoKey); } #endregion #region 미디 노트 구하기 - GetMIDINote(frequency) /// <summary> /// 미디 노트 구하기 /// </summary> /// <param name="frequency">주파수 (단위 : HZ)</param> /// <returns>미디 노트</returns> public static int GetMIDINote(double frequency) { return GetPianoKey(frequency) + 20; } #endregion } } |
▶ Listener.cs
|
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using System; using System.Collections.Generic; using NAudio.Wave; namespace TestProject { /// <summary> /// 리스너 /// </summary> public class Listener : IDisposable { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 샘플 비율 /// </summary> public readonly int SampleRate; #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 웨이브 입력 이벤트 /// </summary> private readonly WaveInEvent waveInEvent; /// <summary> /// 오디오 리스트 /// </summary> private readonly List<double> audioList = new List<double>(); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 진폭 분수 - AmplitudeFraction /// <summary> /// 진폭 분수 /// </summary> public double AmplitudeFraction { get; private set; } #endregion #region 전체 샘플 카운트 - TotalSampleCount /// <summary> /// 전체 샘플 카운트 /// </summary> public double TotalSampleCount { get; private set; } #endregion #region 전체 시간 (단위 : 초) - TotalTime /// <summary> /// 전체 시간 (단위 : 초) /// </summary> public double TotalTime { get { return (double)TotalSampleCount / SampleRate; } } #endregion #region 메모리 내 샘플 카운트 - SampleCountInMemory /// <summary> /// 메모리 내 샘플 카운트 /// </summary> public int SampleCountInMemory { get { return this.audioList.Count; } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - Listener(deviceIndex, sampleRate) /// <summary> /// 생성자 /// </summary> /// <param name="deviceIndex">장치 인덱스</param> /// <param name="sampleRate">샘플 비율</param> public Listener(int deviceIndex, int sampleRate) { SampleRate = sampleRate; this.waveInEvent = new WaveInEvent { DeviceNumber = deviceIndex, WaveFormat = new WaveFormat(sampleRate, bits : 16, channels : 1), BufferMilliseconds = 20 }; this.waveInEvent.DataAvailable += waveInEvent_DataAvailable; this.waveInEvent.StartRecording(); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 신규 오디오 배열 구하기 - GetNewAudioArray() /// <summary> /// 신규 오디오 배열 구하기 /// </summary> /// <returns>신규 오디오 배열</returns> public double[] GetNewAudioArray() { lock(this.audioList) { double[] valueArray = new double[this.audioList.Count]; for(int i = 0; i < valueArray.Length; i++) { valueArray[i] = this.audioList[i]; } this.audioList.RemoveRange(0, valueArray.Length); return valueArray; } } #endregion #region 리소스 해제하기 - Dispose() /// <summary> /// 리소스 해제하기 /// </summary> public void Dispose() { this.waveInEvent?.StopRecording(); this.waveInEvent?.Dispose(); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 웨이브 입력 이벤트 데이터 이용 가능시 처리하기 - waveInEvent_DataAvailable(sender, e) /// <summary> /// 웨이브 입력 이벤트 데이터 이용 가능시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void waveInEvent_DataAvailable(object sender, WaveInEventArgs e) { int byteCountPerSample = this.waveInEvent.WaveFormat.BitsPerSample / 8; int newSampleCount = e.BytesRecorded / byteCountPerSample; double[] bufferArray = new double[newSampleCount]; double peak = 0d; for(int i = 0; i < newSampleCount; i++) { bufferArray[i] = BitConverter.ToInt16(e.Buffer, i * byteCountPerSample); peak = Math.Max(peak, bufferArray[i]); } lock(this.audioList) { this.audioList.AddRange(bufferArray); } AmplitudeFraction = peak / (1 << 15); TotalSampleCount += newSampleCount; } #endregion } } |
▶ MainForm.cs
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 |
using System; using System.Diagnostics; using System.Drawing; using System.Windows.Forms; using NAudio.Wave; using TestLibrary; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 스펙트로그램 제너레이터 /// </summary> private SpectrogramGenerator generator; /// <summary> /// 리스너 /// </summary> private Listener listener; /// <summary> /// 색상 맵 배열 /// </summary> private ColorMap[] colorMapArray; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); if(WaveIn.DeviceCount == 0) { MessageBox.Show ( "No audio input devices found.\n\nThis program will now exit.", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error ); Close(); } this.deviceComboBox.Items.Clear(); for(int i = 0; i < WaveIn.DeviceCount; i++) { this.deviceComboBox.Items.Add(WaveIn.GetCapabilities(i).ProductName); } for(int i = 9; i < 16; i++) { this.fftSizeComboBox.Items.Add($"2^{i} ({1 << i:N0})"); } this.colorMapArray = ColorMap.GetColorMapArray(); foreach(ColorMap colorMap in this.colorMapArray) { this.colorMapComboBox.Items.Add(colorMap.Name); } this.deviceComboBox.SelectedIndexChanged += deviceComboBox_SelectedIndexChanged; this.fftSizeComboBox.SelectedIndexChanged += fftSizeComboBox_SelectedIndexChanged; this.colorMapComboBox.SelectedIndexChanged += colorMapComboBox_SelectedIndexChanged; this.rollCheckBox.CheckedChanged += rollCheckBox_CheckedChanged; this.resetRollButton.Click += resetRollButton_Click; this.timer.Tick += timer_Tick; this.deviceComboBox.SelectedIndex = 0; this.fftSizeComboBox.SelectedIndex = 1; this.colorMapComboBox.SelectedIndex = this.colorMapComboBox.Items.IndexOf("LoporaColorMap"); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 장치 콤보 박스 선택 인덱스 변경시 처리하기 - deviceComboBox_SelectedIndexChanged(sender, e) /// <summary> /// 장치 콤보 박스 선택 인덱스 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void deviceComboBox_SelectedIndexChanged(object sender, EventArgs e) => StartListening(); #endregion #region FFT 크기 콤보 박스 선택 인덱스 변경시 처리하기 - fftSizeComboBox_SelectedIndexChanged(sender, e) /// <summary> /// FFT 크기 콤보 박스 선택 인덱스 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void fftSizeComboBox_SelectedIndexChanged(object sender, EventArgs e) => StartListening(); #endregion #region 색상 맵 콤보 박스 선택 인덱스 변경시 처리하기 - colorMapComboBox_SelectedIndexChanged(sender, e) /// <summary> /// 색상 맵 콤보 박스 선택 인덱스 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void colorMapComboBox_SelectedIndexChanged(object sender, EventArgs e) { this.generator.Colormap = this.colorMapArray[this.colorMapComboBox.SelectedIndex]; } #endregion #region Roll 체크 박스 체크 변경시 처리하기 - rollCheckBox_CheckedChanged(sender, e) /// <summary> /// Roll 체크 박스 체크 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void rollCheckBox_CheckedChanged(object sender, EventArgs e) { this.resetRollButton.Enabled = this.rollCheckBox.Checked; } #endregion #region Roll 리셋하기 버튼 클릭시 처리하기 - resetRollButton_Click(sender, e) /// <summary> /// Roll 리셋하기 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void resetRollButton_Click(object sender, EventArgs e) { this.generator.ResetRoll(); } #endregion #region 타이머 틱 처리하기 - timer_Tick(sender, e) /// <summary> /// 타이머 틱 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void timer_Tick(object sender, EventArgs e) { double[] newAudioArray = this.listener.GetNewAudioArray(); this.generator.Add(newAudioArray, process : false); double multiplier = this.brightnessTrackBar.Value / 20d; if(this.generator.FFTCountToProcess > 0) { Stopwatch stopWatch = Stopwatch.StartNew(); this.generator.Process(); this.generator.SetFixedWidth(spectorgramPictureBox.Width); Bitmap spectrogramBitmap = new Bitmap(this.generator.Width, this.generator.Height, System.Drawing.Imaging.PixelFormat.Format32bppPArgb); using(Bitmap indexedSpectrogramBitmap = this.generator.GetBitmap(multiplier, this.dbCheckBox.Checked, roll : this.rollCheckBox.Checked)) using(Graphics graphics = Graphics.FromImage(spectrogramBitmap)) using(Pen pen = new Pen(Color.White)) { graphics.DrawImage(indexedSpectrogramBitmap, 0, 0); if(this.rollCheckBox.Checked) { graphics.DrawLine(pen, this.generator.NextColumnIndex, 0, this.generator.NextColumnIndex, this.spectorgramPictureBox.Height); } } stopWatch.Stop(); this.spectorgramPictureBox.Image?.Dispose(); this.spectorgramPictureBox.Image = spectrogramBitmap; this.renderTimeStatusLabel.Text = $"렌러딩 시간 : {stopWatch.ElapsedMilliseconds:D2} 밀리초"; this.peakFrequencyStatusLabel.Text = $"피크 (Hz): {this.generator.GetPeak().frequencyHZ:N0}"; } this.timeStatusLabel.Text = $"시간 : {this.listener.TotalTime:N3} 초"; this.fftCountProcessedStatusLabel.Text = $"처리 FFT 수 : {this.generator.FFTCountProcessed:N0}"; this.amplitudeProgressBar.Value = (int)(this.listener.AmplitudeFraction * this.amplitudeProgressBar.Maximum); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 청취 시작하기 - StartListening() /// <summary> /// 청취 시작하기 /// </summary> private void StartListening() { int sampleRate = 6000; int fftSize = 1 << (9 + this.fftSizeComboBox.SelectedIndex); int stepSize = fftSize / 20; this.spectorgramPictureBox.Image?.Dispose(); this.spectorgramPictureBox.Image = null; this.listener?.Dispose(); this.listener = new Listener(this.deviceComboBox.SelectedIndex, sampleRate); this.generator = new SpectrogramGenerator(sampleRate, fftSize, stepSize); this.spectorgramPictureBox.Height = this.generator.Height; this.verticalScalePictureBox.Image?.Dispose(); this.verticalScalePictureBox.Image = this.generator.GetVerticalScaleBitmap(this.verticalScalePictureBox.Width); this.verticalScalePictureBox.Height = this.generator.Height; } #endregion } } |
