I screwed up again, it should be:
Code:oscsB[i]->frequency(detune * noteFreqs[voiceToNote[i]]);
Printable View
I screwed up again, it should be:
Code:oscsB[i]->frequency(detune * noteFreqs[voiceToNote[i]]);
Sweet! Just one thing... it seems to be uptuning... any idea's on how to reverse it? lol
Oh like, instead of the B oscillator being detuned to a higher frequency, you want it detuned to a lower frequency? You could do:
That will invert the detune so 1.0293 will become 0.9715... Not sure if that's what you meant though.Code:oscsB[i]->frequency((1.0f / detune) * noteFreqs[voiceToNote[i]]);
Yes, I think thats the traditional direction, no?
Actually I don't know, haha. I've only really heard the old "super saw" oscillators which had like 6 oscillators per voice, it makes such a wall of sound it was hard for me to tell. I'll have to listen again when I have time... maybe it detunes some up, some down?
lol those supersaws are amazing! I think this is right now, again Wcalvert saves the day!
I added the code to only execute detune when the knob is turned. Onwards and upwards!
Next is LFO, a noise oscillator, and I'm nearing completion! I am considering trying to teach myself to create new Audio tool modules, though my coding experience is limited. Ultimately I want to add LFO, noise, a wavetable oscillator (on that note, do you think replacing the current oscillators with wavetable oscillators may be a way to go? Like have wavetables for all the classic sine, triangle, etc, but also some cooler ones too? I'm still curious about your comment on not using built in oscillators :) )and have separate envelopes for each... all these mixers seem so unnecessary. Sigh... keep trudging and learning!
Here's the code:
Code:#include <Bounce.h>
#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>
Bounce button0 = Bounce(25, 15);
Bounce button1 = Bounce(26, 15);
Bounce button2 = Bounce(27, 15);
Bounce button3 = Bounce(28, 15);
Bounce button4 = Bounce(29, 15);
Bounce button5 = Bounce(30, 15);
Bounce button6 = Bounce(31, 15);
Bounce button7 = Bounce(32, 15);
// Include USBHost Library
#include <USBHost_t36.h>
USBHost myusb;
MIDIDevice midi1(myusb);
// GUItool: begin automatically generated code
AudioSynthWaveformModulated osc1a; //xy=390.6000061035156,161.00000190734863
AudioSynthWaveformModulated osc1b; //xy=390.6000061035156,197.00000190734863
AudioSynthWaveformModulated osc3a; //xy=390.6000061035156,344
AudioSynthWaveformModulated osc7a; //xy=389.6000061035156,751
AudioSynthWaveformModulated osc3b; //xy=391.6000061035156,381
AudioSynthWaveformModulated osc11a; //xy=388.6000061035156,1164
AudioSynthWaveformModulated osc11b; //xy=388.6000099182129,1199.000018119812
AudioSynthWaveformModulated osc7b; //xy=390.6000061035156,788
AudioSynthWaveformModulated osc4a; //xy=393.6000061035156,421
AudioSynthWaveformModulated osc8a; //xy=392.6000061035156,828
AudioSynthWaveformModulated osc12a; //xy=391.6000061035156,1241
AudioSynthWaveformModulated osc2a; //xy=395.6000061035156,265
AudioSynthWaveformModulated osc6a; //xy=394.6000061035156,672
AudioSynthWaveformModulated osc4b; //xy=395.6000061035156,459
AudioSynthWaveformModulated osc10a; //xy=393.6000099182129,1083.0000162124634
AudioSynthWaveformModulated osc8b; //xy=394.6000061035156,866
AudioSynthWaveformModulated osc12b; //xy=393.6000099182129,1277.0000190734863
AudioSynthWaveformModulated osc2b; //xy=397.6000061035156,300
AudioSynthWaveformModulated osc6b; //xy=396.6000061035156,707
AudioSynthWaveformModulated osc10b; //xy=395.6000061035156,1120
AudioSynthWaveformModulated osc5b; //xy=397.6000061035156,621
AudioSynthWaveformModulated osc9b; //xy=396.6000061035156,1034
AudioSynthWaveformModulated osc5a; //xy=398.6000061035156,587
AudioSynthWaveformModulated osc9a; //xy=397.6000061035156,1000
AudioSynthWaveformModulated osc15a; //xy=398.6000061035156,1568
AudioSynthWaveformModulated osc15b; //xy=399.6000061035156,1605
AudioSynthWaveformModulated osc17a; //xy=399,1777.0000019073486
AudioSynthWaveformModulated osc17b; //xy=399,1813.0000019073486
AudioSynthWaveformModulated osc19a; //xy=399,1960
AudioSynthWaveformModulated osc23a; //xy=398,2367
AudioSynthWaveformModulated osc19b; //xy=400,1997
AudioSynthWaveformModulated osc27a; //xy=397,2780
AudioSynthWaveformModulated osc16a; //xy=401.6000061035156,1645
AudioSynthWaveformModulated osc27b; //xy=397.00000381469727,2815.000018119812
AudioSynthWaveformModulated osc23b; //xy=399,2404
AudioSynthWaveformModulated osc14a; //xy=403.6000061035156,1489
AudioSynthWaveformModulated osc20a; //xy=402,2037
AudioSynthWaveformModulated osc16b; //xy=403.6000061035156,1683
AudioSynthWaveformModulated osc24a; //xy=401,2444
AudioSynthWaveformModulated osc28a; //xy=400,2857
AudioSynthWaveformModulated osc18a; //xy=404,1881
AudioSynthWaveformModulated osc14b; //xy=405.6000061035156,1524
AudioSynthWaveformModulated osc22b; //xy=403.00000762939453,2311.0000343322754
AudioSynthWaveformModulated osc20b; //xy=404,2075
AudioSynthWaveformModulated osc13b; //xy=406.6000061035156,1438
AudioSynthWaveformModulated osc26a; //xy=402.00000381469727,2699.0000162124634
AudioSynthWaveformModulated osc24b; //xy=403,2482
AudioSynthWaveformModulated osc22a; //xy=404.00000381469727,2278.0000343322754
AudioSynthWaveformModulated osc13a; //xy=407.6000061035156,1404
AudioSynthWaveformModulated osc28b; //xy=402.00000381469727,2893.0000190734863
AudioSynthWaveformModulated osc18b; //xy=406.00000381469727,1916.0000286102295
AudioSynthWaveformModulated osc26b; //xy=404,2736
AudioSynthWaveformModulated osc21b; //xy=406,2237
AudioSynthWaveformModulated osc25b; //xy=405,2650
AudioSynthWaveformModulated osc21a; //xy=407,2203
AudioSynthWaveformModulated osc25a; //xy=406,2616
AudioSynthWaveformModulated osc31a; //xy=407,3184
AudioSynthWaveformModulated osc31b; //xy=408,3221
AudioSynthWaveformModulated osc32a; //xy=410,3261
AudioSynthWaveformModulated osc30a; //xy=412,3105
AudioSynthWaveformModulated osc32b; //xy=412,3299
AudioSynthWaveformModulated osc30b; //xy=414,3140
AudioSynthWaveformModulated osc29b; //xy=415,3054
AudioSynthWaveformModulated osc29a; //xy=416,3020
AudioMixer4 voice1Mixer; //xy=611.6000061035156,202
AudioMixer4 voice2Mixer; //xy=611.6000061035156,281
AudioMixer4 voice5Mixer; //xy=610.599983215332,607.0000095367432
AudioMixer4 voice6Mixer; //xy=610.599983215332,685.0000114440918
AudioMixer4 voice9Mixer; //xy=609.6000061035156,1022
AudioMixer4 voice10Mixer; //xy=609.6000061035156,1101
AudioMixer4 voice3Mixer; //xy=613.6000061035156,356
AudioMixer4 voice7Mixer; //xy=612.6000061035156,763
AudioMixer4 voice11Mixer; //xy=611.6000061035156,1176
AudioMixer4 voice4Mixer; //xy=614.6000061035156,431
AudioMixer4 voice8Mixer; //xy=613.6000061035156,838
AudioMixer4 voice12Mixer; //xy=612.6000061035156,1251
AudioMixer4 voice13Mixer; //xy=619.6000061035156,1426
AudioMixer4 voice14Mixer; //xy=619.6000061035156,1505
AudioMixer4 voice17Mixer; //xy=620,1818
AudioMixer4 voice18Mixer; //xy=620,1897
AudioMixer4 voice21Mixer; //xy=618.9999771118164,2223.000009536743
AudioMixer4 voice15Mixer; //xy=621.6000061035156,1580
AudioMixer4 voice22Mixer; //xy=619.0000076293945,2299.0000343322754
AudioMixer4 voice25Mixer; //xy=618,2638
AudioMixer4 voice26Mixer; //xy=618,2717
AudioMixer4 voice16Mixer; //xy=622.6000061035156,1655
AudioMixer4 voice23Mixer; //xy=620.0000076293945,2377.0000343322754
AudioMixer4 voice19Mixer; //xy=622,1972
AudioMixer4 voice27Mixer; //xy=620,2792
AudioMixer4 voice20Mixer; //xy=623.0000076293945,2044.0000305175781
AudioMixer4 voice24Mixer; //xy=622.0000076293945,2455.0000343322754
AudioMixer4 voice28Mixer; //xy=621,2867
AudioMixer4 voice29Mixer; //xy=628,3042
AudioMixer4 voice30Mixer; //xy=628,3121
AudioMixer4 voice31Mixer; //xy=630,3196
AudioMixer4 voice32Mixer; //xy=631,3271
AudioEffectEnvelope envelope2; //xy=803.6000061035156,280
AudioEffectEnvelope envelope3; //xy=803.6000061035156,350
AudioEffectEnvelope envelope6; //xy=802.6000061035156,687
AudioEffectEnvelope envelope1; //xy=804.6000061035156,207
AudioEffectEnvelope envelope7; //xy=802.6000061035156,757
AudioEffectEnvelope envelope10; //xy=801.6000061035156,1100
AudioEffectEnvelope envelope5; //xy=803.6000061035156,614
AudioEffectEnvelope envelope11; //xy=801.6000061035156,1170
AudioEffectEnvelope envelope4; //xy=804.6000061035156,425
AudioEffectEnvelope envelope9; //xy=802.6000061035156,1027
AudioEffectEnvelope envelope8; //xy=803.6000061035156,832
AudioEffectEnvelope envelope12; //xy=802.6000061035156,1245
AudioEffectEnvelope envelope14; //xy=811.6000061035156,1504
AudioEffectEnvelope envelope15; //xy=811.6000061035156,1574
AudioEffectEnvelope envelope13; //xy=812.6000061035156,1431
AudioEffectEnvelope envelope16; //xy=812.6000061035156,1649
AudioEffectEnvelope envelope18; //xy=812,1896
AudioEffectEnvelope envelope19; //xy=812,1966
AudioEffectEnvelope envelope22; //xy=811,2303
AudioEffectEnvelope envelope17; //xy=813,1823
AudioEffectEnvelope envelope23; //xy=811,2373
AudioEffectEnvelope envelope26; //xy=810,2716
AudioEffectEnvelope envelope21; //xy=812,2230
AudioEffectEnvelope envelope27; //xy=810,2786
AudioEffectEnvelope envelope20; //xy=813,2041
AudioEffectEnvelope envelope25; //xy=811,2643
AudioEffectEnvelope envelope24; //xy=812,2448
AudioEffectEnvelope envelope28; //xy=811,2861
AudioEffectEnvelope envelope30; //xy=820,3120
AudioEffectEnvelope envelope31; //xy=820,3190
AudioEffectEnvelope envelope29; //xy=821,3047
AudioEffectEnvelope envelope32; //xy=821,3265
AudioMixer4 voiceMixer1; //xy=992.5999908447266,306.00000381469727
AudioMixer4 voiceMixer2; //xy=991.6000061035156,715
AudioMixer4 voiceMixer3; //xy=990.6000061035156,1128
AudioMixer4 voiceMixer4; //xy=1000.5999908447266,1530.0000228881836
AudioMixer4 voiceMixer5; //xy=1000.9999847412109,1922.0000038146973
AudioMixer4 voiceMixer6; //xy=1000,2331
AudioMixer4 voiceMixer7; //xy=999,2744
AudioMixer4 voiceMixer8; //xy=1008.9999847412109,3146.0000228881836
AudioMixer4 subMixer2; //xy=1242.3999938964844,1753.9999771118164
AudioMixer4 subMixer1; //xy=1244.0000915527344,1658.9999752044678
AudioMixer4 lastMixer; //xy=1406.599998474121,1708.1999778747559
AudioFilterStateVariable filter1; //xy=1565,1710.9999771118164
AudioOutputI2S i2s1; //xy=1733,1698.999976158142
AudioConnection patchCord1(osc1a, 0, voice1Mixer, 0);
AudioConnection patchCord2(osc1b, 0, voice1Mixer, 1);
AudioConnection patchCord3(osc3a, 0, voice3Mixer, 0);
AudioConnection patchCord4(osc7a, 0, voice7Mixer, 0);
AudioConnection patchCord5(osc3b, 0, voice3Mixer, 1);
AudioConnection patchCord6(osc11a, 0, voice11Mixer, 0);
AudioConnection patchCord7(osc11b, 0, voice11Mixer, 1);
AudioConnection patchCord8(osc7b, 0, voice7Mixer, 1);
AudioConnection patchCord9(osc4a, 0, voice4Mixer, 0);
AudioConnection patchCord10(osc8a, 0, voice8Mixer, 0);
AudioConnection patchCord11(osc12a, 0, voice12Mixer, 0);
AudioConnection patchCord12(osc2a, 0, voice2Mixer, 0);
AudioConnection patchCord13(osc6a, 0, voice6Mixer, 0);
AudioConnection patchCord14(osc4b, 0, voice4Mixer, 1);
AudioConnection patchCord15(osc10a, 0, voice10Mixer, 0);
AudioConnection patchCord16(osc8b, 0, voice8Mixer, 1);
AudioConnection patchCord17(osc12b, 0, voice12Mixer, 1);
AudioConnection patchCord18(osc2b, 0, voice2Mixer, 1);
AudioConnection patchCord19(osc6b, 0, voice6Mixer, 1);
AudioConnection patchCord20(osc10b, 0, voice10Mixer, 1);
AudioConnection patchCord21(osc5b, 0, voice5Mixer, 1);
AudioConnection patchCord22(osc9b, 0, voice9Mixer, 1);
AudioConnection patchCord23(osc5a, 0, voice5Mixer, 0);
AudioConnection patchCord24(osc9a, 0, voice9Mixer, 0);
AudioConnection patchCord25(osc15a, 0, voice15Mixer, 0);
AudioConnection patchCord26(osc15b, 0, voice15Mixer, 1);
AudioConnection patchCord27(osc17a, 0, voice17Mixer, 0);
AudioConnection patchCord28(osc17b, 0, voice17Mixer, 1);
AudioConnection patchCord29(osc19a, 0, voice19Mixer, 0);
AudioConnection patchCord30(osc23a, 0, voice23Mixer, 0);
AudioConnection patchCord31(osc19b, 0, voice19Mixer, 1);
AudioConnection patchCord32(osc27a, 0, voice27Mixer, 0);
AudioConnection patchCord33(osc16a, 0, voice16Mixer, 0);
AudioConnection patchCord34(osc27b, 0, voice27Mixer, 1);
AudioConnection patchCord35(osc23b, 0, voice23Mixer, 1);
AudioConnection patchCord36(osc14a, 0, voice14Mixer, 0);
AudioConnection patchCord37(osc20a, 0, voice20Mixer, 0);
AudioConnection patchCord38(osc16b, 0, voice16Mixer, 1);
AudioConnection patchCord39(osc24a, 0, voice24Mixer, 0);
AudioConnection patchCord40(osc28a, 0, voice28Mixer, 0);
AudioConnection patchCord41(osc18a, 0, voice18Mixer, 0);
AudioConnection patchCord42(osc14b, 0, voice14Mixer, 1);
AudioConnection patchCord43(osc22b, 0, voice22Mixer, 1);
AudioConnection patchCord44(osc20b, 0, voice20Mixer, 1);
AudioConnection patchCord45(osc13b, 0, voice13Mixer, 1);
AudioConnection patchCord46(osc26a, 0, voice26Mixer, 0);
AudioConnection patchCord47(osc24b, 0, voice24Mixer, 1);
AudioConnection patchCord48(osc22a, 0, voice22Mixer, 0);
AudioConnection patchCord49(osc13a, 0, voice13Mixer, 0);
AudioConnection patchCord50(osc28b, 0, voice28Mixer, 1);
AudioConnection patchCord51(osc18b, 0, voice18Mixer, 1);
AudioConnection patchCord52(osc26b, 0, voice26Mixer, 1);
AudioConnection patchCord53(osc21b, 0, voice21Mixer, 1);
AudioConnection patchCord54(osc25b, 0, voice25Mixer, 1);
AudioConnection patchCord55(osc21a, 0, voice21Mixer, 0);
AudioConnection patchCord56(osc25a, 0, voice25Mixer, 0);
AudioConnection patchCord57(osc31a, 0, voice31Mixer, 0);
AudioConnection patchCord58(osc31b, 0, voice31Mixer, 1);
AudioConnection patchCord59(osc32a, 0, voice32Mixer, 0);
AudioConnection patchCord60(osc30a, 0, voice30Mixer, 0);
AudioConnection patchCord61(osc32b, 0, voice32Mixer, 1);
AudioConnection patchCord62(osc30b, 0, voice30Mixer, 1);
AudioConnection patchCord63(osc29b, 0, voice29Mixer, 1);
AudioConnection patchCord64(osc29a, 0, voice29Mixer, 0);
AudioConnection patchCord65(voice1Mixer, envelope1);
AudioConnection patchCord66(voice2Mixer, envelope2);
AudioConnection patchCord67(voice5Mixer, envelope5);
AudioConnection patchCord68(voice6Mixer, envelope6);
AudioConnection patchCord69(voice9Mixer, envelope9);
AudioConnection patchCord70(voice10Mixer, envelope10);
AudioConnection patchCord71(voice3Mixer, envelope3);
AudioConnection patchCord72(voice7Mixer, envelope7);
AudioConnection patchCord73(voice11Mixer, envelope11);
AudioConnection patchCord74(voice4Mixer, envelope4);
AudioConnection patchCord75(voice8Mixer, envelope8);
AudioConnection patchCord76(voice12Mixer, envelope12);
AudioConnection patchCord77(voice13Mixer, envelope13);
AudioConnection patchCord78(voice14Mixer, envelope14);
AudioConnection patchCord79(voice17Mixer, envelope17);
AudioConnection patchCord80(voice18Mixer, envelope18);
AudioConnection patchCord81(voice21Mixer, envelope21);
AudioConnection patchCord82(voice15Mixer, envelope15);
AudioConnection patchCord83(voice22Mixer, envelope22);
AudioConnection patchCord84(voice25Mixer, envelope25);
AudioConnection patchCord85(voice26Mixer, envelope26);
AudioConnection patchCord86(voice16Mixer, envelope16);
AudioConnection patchCord87(voice23Mixer, envelope23);
AudioConnection patchCord88(voice19Mixer, envelope19);
AudioConnection patchCord89(voice27Mixer, envelope27);
AudioConnection patchCord90(voice20Mixer, envelope20);
AudioConnection patchCord91(voice24Mixer, envelope24);
AudioConnection patchCord92(voice28Mixer, envelope28);
AudioConnection patchCord93(voice29Mixer, envelope29);
AudioConnection patchCord94(voice30Mixer, envelope30);
AudioConnection patchCord95(voice31Mixer, envelope31);
AudioConnection patchCord96(voice32Mixer, envelope32);
AudioConnection patchCord97(envelope2, 0, voiceMixer1, 1);
AudioConnection patchCord98(envelope3, 0, voiceMixer1, 2);
AudioConnection patchCord99(envelope6, 0, voiceMixer2, 1);
AudioConnection patchCord100(envelope1, 0, voiceMixer1, 0);
AudioConnection patchCord101(envelope7, 0, voiceMixer2, 2);
AudioConnection patchCord102(envelope10, 0, voiceMixer3, 1);
AudioConnection patchCord103(envelope5, 0, voiceMixer2, 0);
AudioConnection patchCord104(envelope11, 0, voiceMixer3, 2);
AudioConnection patchCord105(envelope4, 0, voiceMixer1, 3);
AudioConnection patchCord106(envelope9, 0, voiceMixer3, 0);
AudioConnection patchCord107(envelope8, 0, voiceMixer2, 3);
AudioConnection patchCord108(envelope12, 0, voiceMixer3, 3);
AudioConnection patchCord109(envelope14, 0, voiceMixer4, 1);
AudioConnection patchCord110(envelope15, 0, voiceMixer4, 2);
AudioConnection patchCord111(envelope13, 0, voiceMixer4, 0);
AudioConnection patchCord112(envelope16, 0, voiceMixer4, 3);
AudioConnection patchCord113(envelope18, 0, voiceMixer5, 1);
AudioConnection patchCord114(envelope19, 0, voiceMixer5, 2);
AudioConnection patchCord115(envelope22, 0, voiceMixer6, 1);
AudioConnection patchCord116(envelope17, 0, voiceMixer5, 0);
AudioConnection patchCord117(envelope23, 0, voiceMixer6, 2);
AudioConnection patchCord118(envelope26, 0, voiceMixer7, 1);
AudioConnection patchCord119(envelope21, 0, voiceMixer6, 0);
AudioConnection patchCord120(envelope27, 0, voiceMixer7, 2);
AudioConnection patchCord121(envelope20, 0, voiceMixer5, 3);
AudioConnection patchCord122(envelope25, 0, voiceMixer7, 0);
AudioConnection patchCord123(envelope24, 0, voiceMixer6, 3);
AudioConnection patchCord124(envelope28, 0, voiceMixer7, 3);
AudioConnection patchCord125(envelope30, 0, voiceMixer8, 1);
AudioConnection patchCord126(envelope31, 0, voiceMixer8, 2);
AudioConnection patchCord127(envelope29, 0, voiceMixer8, 0);
AudioConnection patchCord128(envelope32, 0, voiceMixer8, 3);
AudioConnection patchCord129(voiceMixer1, 0, subMixer1, 0);
AudioConnection patchCord130(voiceMixer2, 0, subMixer1, 1);
AudioConnection patchCord131(voiceMixer3, 0, subMixer1, 2);
AudioConnection patchCord132(voiceMixer4, 0, subMixer1, 3);
AudioConnection patchCord133(voiceMixer5, 0, subMixer2, 0);
AudioConnection patchCord134(voiceMixer6, 0, subMixer2, 1);
AudioConnection patchCord135(voiceMixer7, 0, subMixer2, 2);
AudioConnection patchCord136(voiceMixer8, 0, subMixer2, 3);
AudioConnection patchCord137(subMixer2, 0, lastMixer, 1);
AudioConnection patchCord138(subMixer1, 0, lastMixer, 0);
AudioConnection patchCord139(lastMixer, 0, filter1, 0);
AudioConnection patchCord140(filter1, 0, i2s1, 0);
AudioConnection patchCord141(filter1, 0, i2s1, 1);
AudioControlSGTL5000 sgtl5000_1; //xy=1713.599998474121,1614.0000190734863
// GUItool: end automatically generated code
#define NUM_VOICES 32
int wave1 = WAVEFORM_SINE;
int wave2 = WAVEFORM_TRIANGLE;
int filterTemp = 10000 * analogRead(A3) / 1023;;
byte globalVelocity = 127;
int attackTemp = 11880 * analogRead(A0) / 1023;
int releaseTemp = analogRead(A1) / 1023;
int attackKnob = 11880 * analogRead(A0) / 1023;
int releaseKnob = 11880 * analogRead(A1) / 1023;
float centsTemp = 100 * analogRead(A17) / 1023;
float cents = 100 * analogRead(A17) / 1023;
float detune = 1.0;
const float noteFreqs[128] = {8.176, 8.662, 9.177, 9.723, 10.301, 10.913, 11.562, 12.25, 12.978, 13.75, 14.568, 15.434, 16.352, 17.324, 18.354, 19.445, 20.602, 21.827, 23.125, 24.5, 25.957, 27.5, 29.135, 30.868, 32.703, 34.648, 36.708, 38.891, 41.203, 43.654, 46.249, 48.999, 51.913, 55, 58.27, 61.735, 65.406, 69.296, 73.416, 77.782, 82.407, 87.307, 92.499, 97.999, 103.826, 110, 116.541, 123.471, 130.813, 138.591, 146.832, 155.563, 164.814, 174.614, 184.997, 195.998, 207.652, 220, 233.082, 246.942, 261.626, 277.183, 293.665, 311.127, 329.628, 349.228, 369.994, 391.995, 415.305, 440, 466.164, 493.883, 523.251, 554.365, 587.33, 622.254, 659.255, 698.456, 739.989, 783.991, 830.609, 880, 932.328, 987.767, 1046.502, 1108.731, 1174.659, 1244.508, 1318.51, 1396.913, 1479.978, 1567.982, 1661.219, 1760, 1864.655, 1975.533, 2093.005, 2217.461, 2349.318, 2489.016, 2637.02, 2793.826, 2959.955, 3135.963, 3322.438, 3520, 3729.31, 3951.066, 4186.009, 4434.922, 4698.636, 4978.032, 5274.041, 5587.652, 5919.911, 6271.927, 6644.875, 7040, 7458.62, 7902.133, 8372.018, 8869.844, 9397.273, 9956.063, 10548.08, 11175.3, 11839.82, 12543.85};
AudioSynthWaveformModulated *oscsA[NUM_VOICES] = { &osc1a, &osc2a, &osc3a, &osc4a, &osc5a, &osc6a, &osc7a, &osc8a, &osc9a, &osc10a, &osc11a, &osc12a, &osc13a, &osc14a, &osc15a, &osc16a, &osc17a, &osc18a, &osc19a, &osc20a, &osc21a, &osc22a, &osc23a, &osc24a, &osc25a, &osc26a, &osc27a, &osc28a, &osc29a, &osc30a, &osc31a, &osc32a };
AudioSynthWaveformModulated *oscsB[NUM_VOICES] = { &osc1b, &osc2b, &osc3b, &osc4b, &osc5b, &osc6b, &osc7b, &osc8b, &osc9b, &osc10b, &osc11b, &osc12b, &osc13b, &osc14b, &osc15b, &osc16b, &osc17b, &osc18b, &osc19b, &osc20b, &osc21b, &osc22b, &osc23b, &osc24b, &osc25b, &osc26b, &osc27b, &osc28b, &osc29b, &osc30b, &osc31b, &osc32b};
AudioEffectEnvelope *envelopes[NUM_VOICES] = { &envelope1, &envelope2, &envelope3, &envelope4, &envelope5, &envelope6, &envelope7, &envelope8, &envelope9, &envelope10, &envelope11, &envelope12, &envelope13, &envelope14, &envelope15, &envelope16, &envelope17, &envelope18, &envelope19, &envelope20, &envelope21, &envelope22, &envelope23, &envelope24, &envelope25, &envelope26, &envelope27, &envelope28, &envelope29, &envelope30, &envelope31, &envelope32 };
Bounce *mybutton[] = { &button0, &button1, &button2, &button3, &button4, &button5, &button6, &button7};
const float buttonFreqs[8] = {48, 50, 52, 53, 55, 57, 59, 60};
unsigned long voiceOnTimes[NUM_VOICES] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
bool idleVoices[NUM_VOICES] = {true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true };
byte voiceToNote[NUM_VOICES] = {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }; // Dummy value outside range of valid notes is used to init each.
elapsedMillis readPots = 0;
void NoteOn(byte channel, byte note, byte velocity) {
bool found = false;
int voiceToUse = 0;
// Acquire an idle voice if possible.
for (int i = 0; i < NUM_VOICES; i++) {
if (idleVoices[i]) {
voiceToUse = i;
found = 1;
break;
}
}
// Steal voice if needed.
if (!found) {
unsigned long oldest = millis();
for (int i = 0; i < NUM_VOICES; i++) {
if (voiceOnTimes[i] < oldest) {
oldest = voiceOnTimes[i];
voiceToUse = i;
}
}
}
// Now use the acquired voice.
idleVoices[voiceToUse] = false;
voiceToNote[voiceToUse] = note;
AudioNoInterrupts();
oscsA[voiceToUse]->frequency(noteFreqs[note]);
oscsA[voiceToUse]->amplitude(.5f);
oscsB[voiceToUse]->frequency(detune * noteFreqs[note]);
oscsB[voiceToUse]->amplitude(.5f);
envelopes[voiceToUse]->noteOn();
AudioInterrupts();
voiceOnTimes[voiceToUse] = millis();
}
void NoteOff(byte channel, byte note, byte velocity) {
for (int i = 0; i < NUM_VOICES; i++) {
if (voiceToNote[i] == note) {
envelopes[i]->noteOff();
voiceToNote[i] = -1;
}
}
}
void IdleCheck(void) {
for (uint8_t i = 0; i < NUM_VOICES; i++) {
if (!envelopes[i]->isActive()) {
oscsA[i]->amplitude(0);
oscsB[i]->amplitude(0);
idleVoices[i] = 1;
} else {
idleVoices[i] = false;
}
}
}
void setup() {
AudioMemory(160);
Serial.begin(115200);
myusb.begin();
pinMode(25, INPUT_PULLUP);
pinMode(26, INPUT_PULLUP);
pinMode(27, INPUT_PULLUP);
pinMode(28, INPUT_PULLUP);
pinMode(29, INPUT_PULLUP);
pinMode(30, INPUT_PULLUP);
pinMode(31, INPUT_PULLUP);
pinMode(32, INPUT_PULLUP);
for (int i = 0; i < 4; i++) {
// Set all mixers.
voice1Mixer.gain(i, .5f);
voice2Mixer.gain(i, .5f);
voice3Mixer.gain(i, .5f);
voice4Mixer.gain(i, .5f);
voice5Mixer.gain(i, .5f);
voice6Mixer.gain(i, .5f);
voice7Mixer.gain(i, .5f);
voice8Mixer.gain(i, .5f);
voice9Mixer.gain(i, .5f);
voice10Mixer.gain(i, .5f);
voice11Mixer.gain(i, .5f);
voice12Mixer.gain(i, .5f);
voice13Mixer.gain(i, .5f);
voice14Mixer.gain(i, .5f);
voice15Mixer.gain(i, .5f);
voice16Mixer.gain(i, .5f);
voice17Mixer.gain(i, .5f);
voice18Mixer.gain(i, .5f);
voice19Mixer.gain(i, .5f);
voice20Mixer.gain(i, .5f);
voice21Mixer.gain(i, .5f);
voice22Mixer.gain(i, .5f);
voice23Mixer.gain(i, .5f);
voice24Mixer.gain(i, .5f);
voice25Mixer.gain(i, .5f);
voice26Mixer.gain(i, .5f);
voice27Mixer.gain(i, .5f);
voice28Mixer.gain(i, .5f);
voice29Mixer.gain(i, .5f);
voice30Mixer.gain(i, .5f);
voice31Mixer.gain(i, .5f);
voice32Mixer.gain(i, .5f);
voiceMixer1.gain(i, .5f);
voiceMixer2.gain(i, .5f);
voiceMixer3.gain(i, .5f);
voiceMixer4.gain(i, .5f);
voiceMixer5.gain(i, .5f);
voiceMixer6.gain(i, .5f);
voiceMixer7.gain(i, .5f);
voiceMixer8.gain(i, .5f);
subMixer1.gain(i, .5f);
subMixer2.gain(i, .5f);
lastMixer.gain(i, .6f);
// Set oscs to default waves.
oscsA[i]->begin(wave1);
oscsB[i]->begin(wave2);
// Set envelopes to something reasonable.
envelopes[i]->attack(attackKnob);
envelopes[i]->decay(10);
envelopes[i]->sustain(.5f);
envelopes[i]->release(releaseKnob);
//Set default filter value
int filterKnob = 10000 * analogRead(A3) / 1023;
filter1.frequency(filterKnob);
}
// Enable codec
sgtl5000_1.enable();
sgtl5000_1.volume(.5f);
// Set USB MIDI device callbacks.
midi1.setHandleNoteOff(NoteOff);
midi1.setHandleNoteOn(NoteOn);
}
void loop() {
// Only read pots every 50 milliseconds to reduce glitchiness due to noise...
// This could be done with averaging or something instead.
if (readPots >= 50) {
// Reset elapsed time.
readPots = 0;
float cents = 100 * analogRead(A17) / 1023;
float detune = pow(2, (cents / 1200));
if (centsTemp != cents) {
for (int i = 0; i < NUM_VOICES; i++) {
if (voiceToNote[i] != 255) {
oscsB[i]->frequency((1.0f / detune) * noteFreqs[voiceToNote[i]]);
Serial.println(voiceToNote[i]);
Serial.println(detune);
}
}
centsTemp = cents;
}
// Read waveform selection pots.
int wave1Temp = map(analogRead(A14), 0, 1023, WAVEFORM_SINE, WAVEFORM_TRIANGLE);
int wave2Temp = map(analogRead(A16), 0, 1023, WAVEFORM_SINE, WAVEFORM_TRIANGLE);
// Update A oscs only if waveform has changed.
// Oscillator phase will be reset by calling begin(), that's why we only want to do it when knob has changed.
if (wave1Temp != wave1) {
wave1 = wave1Temp;
Serial.printf("Knob 1: %d\n", wave1);
for (int i = 0; i < NUM_VOICES; i++) {
oscsA[i]->begin(wave1);
}
}
// Same thing for B oscs.
if (wave2Temp != wave2) {
wave2 = wave2Temp;
Serial.printf("Knob 2: %d\n", wave2);
for (int i = 0; i < NUM_VOICES; i++) {
oscsB[i]->begin(wave2);
}
}
//Lowpass Filter
int filterKnob = 10000 * analogRead(A3) / 1023;
if (filterTemp != filterKnob) {
filterTemp = filterKnob;
filter1.frequency(filterKnob);
//Resonace will be controlled by its own knob
filter1.resonance(3.8);
}
//Attack and Release
int attackKnob = 11880 * analogRead(A0) / 1023;
int releaseKnob = 11880 * analogRead(A1) / 1023;
if (attackTemp != attackKnob) {
attackTemp = attackKnob;
for (int i = 0; i < NUM_VOICES; i++) {
envelopes[i]->attack(attackKnob);
}
}
if (releaseTemp != releaseKnob) {
releaseTemp = releaseKnob;
for (int i = 0; i < NUM_VOICES; i++) {
envelopes[i]->release(releaseKnob);
}
}
}
for (int i = 0; i < 8; i++) {
mybutton[i]->update();
if (mybutton[i]->fallingEdge()) {
NoteOn(1, buttonFreqs[i], globalVelocity);
}
if (mybutton[i]->risingEdge()) {
NoteOff(1, buttonFreqs[i], globalVelocity);
}
}
IdleCheck();
midi1.read();
}
Keeping tight lipped Wcalvert? lol
The benefit of wavetables, at least as I understand it, is that you get to have samples recorded at different pitches. This helps make things more realistic because, for example, resonance effects change as the pitch changes. With the simple waveforms (sine, saw, square) there's not a lot of benefit there. You can pitch them up and down without any problem.
If you wanted to write your own audio modules... well, I think the sky is the limit. One idea I have been messing with over the past few days is taking a single-cycle sample of a waveform and looping it to make a new "oscillator". This could be used to make analog-ish squares and saws for example, which sound 'sweeter' than traditional digital squares and saws.
Hey Wcalvert! I hope all is well with you, brother. I am in the process of commenting the crap out of my code, 1. So I can understand it better and 2. For future users to get as much as possible out of it. I may have overcommented a bit, but I wanted to be thorough. I was wondering if you had a moment sometime if you could comment your code contributions a little deeper than you already have? I started to, I'm about 95% of the way there, but I got a little lost when you started using millis()... around that area (is that starting a timer, or grabbing an already running timers value?). Just kind of breakdown whats happening in your part of the code. If you get a chance and feel so inclined I think it would not only help me but future beginner coders as well. Thanks my friend! Here's what I've done so far.
Code:// Includes
#include <Bounce.h>
#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>
// My synth has 8 onboard buttons. Bounce my Buttons :)
Bounce button0 = Bounce(25, 15);
Bounce button1 = Bounce(26, 15);
Bounce button2 = Bounce(27, 15);
Bounce button3 = Bounce(28, 15);
Bounce button4 = Bounce(29, 15);
Bounce button5 = Bounce(30, 15);
Bounce button6 = Bounce(31, 15);
Bounce button7 = Bounce(32, 15);
// Include USBHost Library
#include <USBHost_t36.h>
// Setup USBHost objects
USBHost myusb;
MIDIDevice midi1(myusb);
// GUItool: begin automatically generated code
AudioSynthWaveformModulated osc1a; //xy=390.6000061035156,161.00000190734863
AudioSynthWaveformModulated osc1b; //xy=390.6000061035156,197.00000190734863
AudioSynthWaveformModulated osc3a; //xy=390.6000061035156,344
AudioSynthWaveformModulated osc7a; //xy=389.6000061035156,751
AudioSynthWaveformModulated osc3b; //xy=391.6000061035156,381
AudioSynthWaveformModulated osc11a; //xy=388.6000061035156,1164
AudioSynthWaveformModulated osc11b; //xy=388.6000099182129,1199.000018119812
AudioSynthWaveformModulated osc7b; //xy=390.6000061035156,788
AudioSynthWaveformModulated osc4a; //xy=393.6000061035156,421
AudioSynthWaveformModulated osc8a; //xy=392.6000061035156,828
AudioSynthWaveformModulated osc12a; //xy=391.6000061035156,1241
AudioSynthWaveformModulated osc2a; //xy=395.6000061035156,265
AudioSynthWaveformModulated osc6a; //xy=394.6000061035156,672
AudioSynthWaveformModulated osc4b; //xy=395.6000061035156,459
AudioSynthWaveformModulated osc10a; //xy=393.6000099182129,1083.0000162124634
AudioSynthWaveformModulated osc8b; //xy=394.6000061035156,866
AudioSynthWaveformModulated osc12b; //xy=393.6000099182129,1277.0000190734863
AudioSynthWaveformModulated osc2b; //xy=397.6000061035156,300
AudioSynthWaveformModulated osc6b; //xy=396.6000061035156,707
AudioSynthWaveformModulated osc10b; //xy=395.6000061035156,1120
AudioSynthWaveformModulated osc5b; //xy=397.6000061035156,621
AudioSynthWaveformModulated osc9b; //xy=396.6000061035156,1034
AudioSynthWaveformModulated osc5a; //xy=398.6000061035156,587
AudioSynthWaveformModulated osc9a; //xy=397.6000061035156,1000
AudioSynthWaveformModulated osc15a; //xy=398.6000061035156,1568
AudioSynthWaveformModulated osc15b; //xy=399.6000061035156,1605
AudioSynthWaveformModulated osc17a; //xy=399,1777.0000019073486
AudioSynthWaveformModulated osc17b; //xy=399,1813.0000019073486
AudioSynthWaveformModulated osc19a; //xy=399,1960
AudioSynthWaveformModulated osc23a; //xy=398,2367
AudioSynthWaveformModulated osc19b; //xy=400,1997
AudioSynthWaveformModulated osc27a; //xy=397,2780
AudioSynthWaveformModulated osc16a; //xy=401.6000061035156,1645
AudioSynthWaveformModulated osc27b; //xy=397.00000381469727,2815.000018119812
AudioSynthWaveformModulated osc23b; //xy=399,2404
AudioSynthWaveformModulated osc14a; //xy=403.6000061035156,1489
AudioSynthWaveformModulated osc20a; //xy=402,2037
AudioSynthWaveformModulated osc16b; //xy=403.6000061035156,1683
AudioSynthWaveformModulated osc24a; //xy=401,2444
AudioSynthWaveformModulated osc28a; //xy=400,2857
AudioSynthWaveformModulated osc18a; //xy=404,1881
AudioSynthWaveformModulated osc14b; //xy=405.6000061035156,1524
AudioSynthWaveformModulated osc22b; //xy=403.00000762939453,2311.0000343322754
AudioSynthWaveformModulated osc20b; //xy=404,2075
AudioSynthWaveformModulated osc13b; //xy=406.6000061035156,1438
AudioSynthWaveformModulated osc26a; //xy=402.00000381469727,2699.0000162124634
AudioSynthWaveformModulated osc24b; //xy=403,2482
AudioSynthWaveformModulated osc22a; //xy=404.00000381469727,2278.0000343322754
AudioSynthWaveformModulated osc13a; //xy=407.6000061035156,1404
AudioSynthWaveformModulated osc28b; //xy=402.00000381469727,2893.0000190734863
AudioSynthWaveformModulated osc18b; //xy=406.00000381469727,1916.0000286102295
AudioSynthWaveformModulated osc26b; //xy=404,2736
AudioSynthWaveformModulated osc21b; //xy=406,2237
AudioSynthWaveformModulated osc25b; //xy=405,2650
AudioSynthWaveformModulated osc21a; //xy=407,2203
AudioSynthWaveformModulated osc25a; //xy=406,2616
AudioSynthWaveformModulated osc31a; //xy=407,3184
AudioSynthWaveformModulated osc31b; //xy=408,3221
AudioSynthWaveformModulated osc32a; //xy=410,3261
AudioSynthWaveformModulated osc30a; //xy=412,3105
AudioSynthWaveformModulated osc32b; //xy=412,3299
AudioSynthWaveformModulated osc30b; //xy=414,3140
AudioSynthWaveformModulated osc29b; //xy=415,3054
AudioSynthWaveformModulated osc29a; //xy=416,3020
AudioMixer4 voice1Mixer; //xy=611.6000061035156,202
AudioMixer4 voice2Mixer; //xy=611.6000061035156,281
AudioMixer4 voice5Mixer; //xy=610.599983215332,607.0000095367432
AudioMixer4 voice6Mixer; //xy=610.599983215332,685.0000114440918
AudioMixer4 voice9Mixer; //xy=609.6000061035156,1022
AudioMixer4 voice10Mixer; //xy=609.6000061035156,1101
AudioMixer4 voice3Mixer; //xy=613.6000061035156,356
AudioMixer4 voice7Mixer; //xy=612.6000061035156,763
AudioMixer4 voice11Mixer; //xy=611.6000061035156,1176
AudioMixer4 voice4Mixer; //xy=614.6000061035156,431
AudioMixer4 voice8Mixer; //xy=613.6000061035156,838
AudioMixer4 voice12Mixer; //xy=612.6000061035156,1251
AudioMixer4 voice13Mixer; //xy=619.6000061035156,1426
AudioMixer4 voice14Mixer; //xy=619.6000061035156,1505
AudioMixer4 voice17Mixer; //xy=620,1818
AudioMixer4 voice18Mixer; //xy=620,1897
AudioMixer4 voice21Mixer; //xy=618.9999771118164,2223.000009536743
AudioMixer4 voice15Mixer; //xy=621.6000061035156,1580
AudioMixer4 voice22Mixer; //xy=619.0000076293945,2299.0000343322754
AudioMixer4 voice25Mixer; //xy=618,2638
AudioMixer4 voice26Mixer; //xy=618,2717
AudioMixer4 voice16Mixer; //xy=622.6000061035156,1655
AudioMixer4 voice23Mixer; //xy=620.0000076293945,2377.0000343322754
AudioMixer4 voice19Mixer; //xy=622,1972
AudioMixer4 voice27Mixer; //xy=620,2792
AudioMixer4 voice20Mixer; //xy=623.0000076293945,2044.0000305175781
AudioMixer4 voice24Mixer; //xy=622.0000076293945,2455.0000343322754
AudioMixer4 voice28Mixer; //xy=621,2867
AudioMixer4 voice29Mixer; //xy=628,3042
AudioMixer4 voice30Mixer; //xy=628,3121
AudioMixer4 voice31Mixer; //xy=630,3196
AudioMixer4 voice32Mixer; //xy=631,3271
AudioEffectEnvelope envelope2; //xy=803.6000061035156,280
AudioEffectEnvelope envelope3; //xy=803.6000061035156,350
AudioEffectEnvelope envelope6; //xy=802.6000061035156,687
AudioEffectEnvelope envelope1; //xy=804.6000061035156,207
AudioEffectEnvelope envelope7; //xy=802.6000061035156,757
AudioEffectEnvelope envelope10; //xy=801.6000061035156,1100
AudioEffectEnvelope envelope5; //xy=803.6000061035156,614
AudioEffectEnvelope envelope11; //xy=801.6000061035156,1170
AudioEffectEnvelope envelope4; //xy=804.6000061035156,425
AudioEffectEnvelope envelope9; //xy=802.6000061035156,1027
AudioEffectEnvelope envelope8; //xy=803.6000061035156,832
AudioEffectEnvelope envelope12; //xy=802.6000061035156,1245
AudioEffectEnvelope envelope14; //xy=811.6000061035156,1504
AudioEffectEnvelope envelope15; //xy=811.6000061035156,1574
AudioEffectEnvelope envelope13; //xy=812.6000061035156,1431
AudioEffectEnvelope envelope16; //xy=812.6000061035156,1649
AudioEffectEnvelope envelope18; //xy=812,1896
AudioEffectEnvelope envelope19; //xy=812,1966
AudioEffectEnvelope envelope22; //xy=811,2303
AudioEffectEnvelope envelope17; //xy=813,1823
AudioEffectEnvelope envelope23; //xy=811,2373
AudioEffectEnvelope envelope26; //xy=810,2716
AudioEffectEnvelope envelope21; //xy=812,2230
AudioEffectEnvelope envelope27; //xy=810,2786
AudioEffectEnvelope envelope20; //xy=813,2041
AudioEffectEnvelope envelope25; //xy=811,2643
AudioEffectEnvelope envelope24; //xy=812,2448
AudioEffectEnvelope envelope28; //xy=811,2861
AudioEffectEnvelope envelope30; //xy=820,3120
AudioEffectEnvelope envelope31; //xy=820,3190
AudioEffectEnvelope envelope29; //xy=821,3047
AudioEffectEnvelope envelope32; //xy=821,3265
AudioMixer4 voiceMixer1; //xy=992.5999908447266,306.00000381469727
AudioMixer4 voiceMixer2; //xy=991.6000061035156,715
AudioMixer4 voiceMixer3; //xy=990.6000061035156,1128
AudioMixer4 voiceMixer4; //xy=1000.5999908447266,1530.0000228881836
AudioMixer4 voiceMixer5; //xy=1000.9999847412109,1922.0000038146973
AudioMixer4 voiceMixer6; //xy=1000,2331
AudioMixer4 voiceMixer7; //xy=999,2744
AudioMixer4 voiceMixer8; //xy=1008.9999847412109,3146.0000228881836
AudioMixer4 subMixer2; //xy=1242.3999938964844,1753.9999771118164
AudioMixer4 subMixer1; //xy=1244.0000915527344,1658.9999752044678
AudioMixer4 lastMixer; //xy=1406.599998474121,1708.1999778747559
AudioFilterStateVariable filter1; //xy=1565,1710.9999771118164
AudioOutputI2S i2s1; //xy=1733,1698.999976158142
AudioConnection patchCord1(osc1a, 0, voice1Mixer, 0);
AudioConnection patchCord2(osc1b, 0, voice1Mixer, 1);
AudioConnection patchCord3(osc3a, 0, voice3Mixer, 0);
AudioConnection patchCord4(osc7a, 0, voice7Mixer, 0);
AudioConnection patchCord5(osc3b, 0, voice3Mixer, 1);
AudioConnection patchCord6(osc11a, 0, voice11Mixer, 0);
AudioConnection patchCord7(osc11b, 0, voice11Mixer, 1);
AudioConnection patchCord8(osc7b, 0, voice7Mixer, 1);
AudioConnection patchCord9(osc4a, 0, voice4Mixer, 0);
AudioConnection patchCord10(osc8a, 0, voice8Mixer, 0);
AudioConnection patchCord11(osc12a, 0, voice12Mixer, 0);
AudioConnection patchCord12(osc2a, 0, voice2Mixer, 0);
AudioConnection patchCord13(osc6a, 0, voice6Mixer, 0);
AudioConnection patchCord14(osc4b, 0, voice4Mixer, 1);
AudioConnection patchCord15(osc10a, 0, voice10Mixer, 0);
AudioConnection patchCord16(osc8b, 0, voice8Mixer, 1);
AudioConnection patchCord17(osc12b, 0, voice12Mixer, 1);
AudioConnection patchCord18(osc2b, 0, voice2Mixer, 1);
AudioConnection patchCord19(osc6b, 0, voice6Mixer, 1);
AudioConnection patchCord20(osc10b, 0, voice10Mixer, 1);
AudioConnection patchCord21(osc5b, 0, voice5Mixer, 1);
AudioConnection patchCord22(osc9b, 0, voice9Mixer, 1);
AudioConnection patchCord23(osc5a, 0, voice5Mixer, 0);
AudioConnection patchCord24(osc9a, 0, voice9Mixer, 0);
AudioConnection patchCord25(osc15a, 0, voice15Mixer, 0);
AudioConnection patchCord26(osc15b, 0, voice15Mixer, 1);
AudioConnection patchCord27(osc17a, 0, voice17Mixer, 0);
AudioConnection patchCord28(osc17b, 0, voice17Mixer, 1);
AudioConnection patchCord29(osc19a, 0, voice19Mixer, 0);
AudioConnection patchCord30(osc23a, 0, voice23Mixer, 0);
AudioConnection patchCord31(osc19b, 0, voice19Mixer, 1);
AudioConnection patchCord32(osc27a, 0, voice27Mixer, 0);
AudioConnection patchCord33(osc16a, 0, voice16Mixer, 0);
AudioConnection patchCord34(osc27b, 0, voice27Mixer, 1);
AudioConnection patchCord35(osc23b, 0, voice23Mixer, 1);
AudioConnection patchCord36(osc14a, 0, voice14Mixer, 0);
AudioConnection patchCord37(osc20a, 0, voice20Mixer, 0);
AudioConnection patchCord38(osc16b, 0, voice16Mixer, 1);
AudioConnection patchCord39(osc24a, 0, voice24Mixer, 0);
AudioConnection patchCord40(osc28a, 0, voice28Mixer, 0);
AudioConnection patchCord41(osc18a, 0, voice18Mixer, 0);
AudioConnection patchCord42(osc14b, 0, voice14Mixer, 1);
AudioConnection patchCord43(osc22b, 0, voice22Mixer, 1);
AudioConnection patchCord44(osc20b, 0, voice20Mixer, 1);
AudioConnection patchCord45(osc13b, 0, voice13Mixer, 1);
AudioConnection patchCord46(osc26a, 0, voice26Mixer, 0);
AudioConnection patchCord47(osc24b, 0, voice24Mixer, 1);
AudioConnection patchCord48(osc22a, 0, voice22Mixer, 0);
AudioConnection patchCord49(osc13a, 0, voice13Mixer, 0);
AudioConnection patchCord50(osc28b, 0, voice28Mixer, 1);
AudioConnection patchCord51(osc18b, 0, voice18Mixer, 1);
AudioConnection patchCord52(osc26b, 0, voice26Mixer, 1);
AudioConnection patchCord53(osc21b, 0, voice21Mixer, 1);
AudioConnection patchCord54(osc25b, 0, voice25Mixer, 1);
AudioConnection patchCord55(osc21a, 0, voice21Mixer, 0);
AudioConnection patchCord56(osc25a, 0, voice25Mixer, 0);
AudioConnection patchCord57(osc31a, 0, voice31Mixer, 0);
AudioConnection patchCord58(osc31b, 0, voice31Mixer, 1);
AudioConnection patchCord59(osc32a, 0, voice32Mixer, 0);
AudioConnection patchCord60(osc30a, 0, voice30Mixer, 0);
AudioConnection patchCord61(osc32b, 0, voice32Mixer, 1);
AudioConnection patchCord62(osc30b, 0, voice30Mixer, 1);
AudioConnection patchCord63(osc29b, 0, voice29Mixer, 1);
AudioConnection patchCord64(osc29a, 0, voice29Mixer, 0);
AudioConnection patchCord65(voice1Mixer, envelope1);
AudioConnection patchCord66(voice2Mixer, envelope2);
AudioConnection patchCord67(voice5Mixer, envelope5);
AudioConnection patchCord68(voice6Mixer, envelope6);
AudioConnection patchCord69(voice9Mixer, envelope9);
AudioConnection patchCord70(voice10Mixer, envelope10);
AudioConnection patchCord71(voice3Mixer, envelope3);
AudioConnection patchCord72(voice7Mixer, envelope7);
AudioConnection patchCord73(voice11Mixer, envelope11);
AudioConnection patchCord74(voice4Mixer, envelope4);
AudioConnection patchCord75(voice8Mixer, envelope8);
AudioConnection patchCord76(voice12Mixer, envelope12);
AudioConnection patchCord77(voice13Mixer, envelope13);
AudioConnection patchCord78(voice14Mixer, envelope14);
AudioConnection patchCord79(voice17Mixer, envelope17);
AudioConnection patchCord80(voice18Mixer, envelope18);
AudioConnection patchCord81(voice21Mixer, envelope21);
AudioConnection patchCord82(voice15Mixer, envelope15);
AudioConnection patchCord83(voice22Mixer, envelope22);
AudioConnection patchCord84(voice25Mixer, envelope25);
AudioConnection patchCord85(voice26Mixer, envelope26);
AudioConnection patchCord86(voice16Mixer, envelope16);
AudioConnection patchCord87(voice23Mixer, envelope23);
AudioConnection patchCord88(voice19Mixer, envelope19);
AudioConnection patchCord89(voice27Mixer, envelope27);
AudioConnection patchCord90(voice20Mixer, envelope20);
AudioConnection patchCord91(voice24Mixer, envelope24);
AudioConnection patchCord92(voice28Mixer, envelope28);
AudioConnection patchCord93(voice29Mixer, envelope29);
AudioConnection patchCord94(voice30Mixer, envelope30);
AudioConnection patchCord95(voice31Mixer, envelope31);
AudioConnection patchCord96(voice32Mixer, envelope32);
AudioConnection patchCord97(envelope2, 0, voiceMixer1, 1);
AudioConnection patchCord98(envelope3, 0, voiceMixer1, 2);
AudioConnection patchCord99(envelope6, 0, voiceMixer2, 1);
AudioConnection patchCord100(envelope1, 0, voiceMixer1, 0);
AudioConnection patchCord101(envelope7, 0, voiceMixer2, 2);
AudioConnection patchCord102(envelope10, 0, voiceMixer3, 1);
AudioConnection patchCord103(envelope5, 0, voiceMixer2, 0);
AudioConnection patchCord104(envelope11, 0, voiceMixer3, 2);
AudioConnection patchCord105(envelope4, 0, voiceMixer1, 3);
AudioConnection patchCord106(envelope9, 0, voiceMixer3, 0);
AudioConnection patchCord107(envelope8, 0, voiceMixer2, 3);
AudioConnection patchCord108(envelope12, 0, voiceMixer3, 3);
AudioConnection patchCord109(envelope14, 0, voiceMixer4, 1);
AudioConnection patchCord110(envelope15, 0, voiceMixer4, 2);
AudioConnection patchCord111(envelope13, 0, voiceMixer4, 0);
AudioConnection patchCord112(envelope16, 0, voiceMixer4, 3);
AudioConnection patchCord113(envelope18, 0, voiceMixer5, 1);
AudioConnection patchCord114(envelope19, 0, voiceMixer5, 2);
AudioConnection patchCord115(envelope22, 0, voiceMixer6, 1);
AudioConnection patchCord116(envelope17, 0, voiceMixer5, 0);
AudioConnection patchCord117(envelope23, 0, voiceMixer6, 2);
AudioConnection patchCord118(envelope26, 0, voiceMixer7, 1);
AudioConnection patchCord119(envelope21, 0, voiceMixer6, 0);
AudioConnection patchCord120(envelope27, 0, voiceMixer7, 2);
AudioConnection patchCord121(envelope20, 0, voiceMixer5, 3);
AudioConnection patchCord122(envelope25, 0, voiceMixer7, 0);
AudioConnection patchCord123(envelope24, 0, voiceMixer6, 3);
AudioConnection patchCord124(envelope28, 0, voiceMixer7, 3);
AudioConnection patchCord125(envelope30, 0, voiceMixer8, 1);
AudioConnection patchCord126(envelope31, 0, voiceMixer8, 2);
AudioConnection patchCord127(envelope29, 0, voiceMixer8, 0);
AudioConnection patchCord128(envelope32, 0, voiceMixer8, 3);
AudioConnection patchCord129(voiceMixer1, 0, subMixer1, 0);
AudioConnection patchCord130(voiceMixer2, 0, subMixer1, 1);
AudioConnection patchCord131(voiceMixer3, 0, subMixer1, 2);
AudioConnection patchCord132(voiceMixer4, 0, subMixer1, 3);
AudioConnection patchCord133(voiceMixer5, 0, subMixer2, 0);
AudioConnection patchCord134(voiceMixer6, 0, subMixer2, 1);
AudioConnection patchCord135(voiceMixer7, 0, subMixer2, 2);
AudioConnection patchCord136(voiceMixer8, 0, subMixer2, 3);
AudioConnection patchCord137(subMixer2, 0, lastMixer, 1);
AudioConnection patchCord138(subMixer1, 0, lastMixer, 0);
AudioConnection patchCord139(lastMixer, 0, filter1, 0);
AudioConnection patchCord140(filter1, 0, i2s1, 0);
AudioConnection patchCord141(filter1, 0, i2s1, 1);
AudioControlSGTL5000 sgtl5000_1; //xy=1713.599998474121,1614.0000190734863
// GUItool: end automatically generated code
// GLOBAL VARIABLES
#define NUM_VOICES 32
int wave1 = WAVEFORM_SINE;
int wave2 = WAVEFORM_TRIANGLE;
int filterTemp = 10000 * analogRead(A3) / 1023;;
byte globalVelocity = 127;
int attackTemp = 11880 * analogRead(A0) / 1023;
int releaseTemp = analogRead(A1) / 1023;
int attackKnob = 11880 * analogRead(A0) / 1023;
int releaseKnob = 11880 * analogRead(A1) / 1023;
float centsTemp = 100 * analogRead(A17) / 1023;
float cents = 100 * analogRead(A17) / 1023;
float detune = 1.0;
// Array to convert MIDI notes to thier corresponding frequency. Super useful
const float noteFreqs[128] = {8.176, 8.662, 9.177, 9.723, 10.301, 10.913, 11.562, 12.25, 12.978, 13.75, 14.568, 15.434, 16.352, 17.324, 18.354, 19.445, 20.602, 21.827, 23.125, 24.5, 25.957, 27.5, 29.135, 30.868, 32.703, 34.648, 36.708, 38.891, 41.203, 43.654, 46.249, 48.999, 51.913, 55, 58.27, 61.735, 65.406, 69.296, 73.416, 77.782, 82.407, 87.307, 92.499, 97.999, 103.826, 110, 116.541, 123.471, 130.813, 138.591, 146.832, 155.563, 164.814, 174.614, 184.997, 195.998, 207.652, 220, 233.082, 246.942, 261.626, 277.183, 293.665, 311.127, 329.628, 349.228, 369.994, 391.995, 415.305, 440, 466.164, 493.883, 523.251, 554.365, 587.33, 622.254, 659.255, 698.456, 739.989, 783.991, 830.609, 880, 932.328, 987.767, 1046.502, 1108.731, 1174.659, 1244.508, 1318.51, 1396.913, 1479.978, 1567.982, 1661.219, 1760, 1864.655, 1975.533, 2093.005, 2217.461, 2349.318, 2489.016, 2637.02, 2793.826, 2959.955, 3135.963, 3322.438, 3520, 3729.31, 3951.066, 4186.009, 4434.922, 4698.636, 4978.032, 5274.041, 5587.652, 5919.911, 6271.927, 6644.875, 7040, 7458.62, 7902.133, 8372.018, 8869.844, 9397.273, 9956.063, 10548.08, 11175.3, 11839.82, 12543.85};
// Pointer Arrays for Oscillators, envelopes, and buttons
AudioSynthWaveformModulated *oscsA[NUM_VOICES] = { &osc1a, &osc2a, &osc3a, &osc4a, &osc5a, &osc6a, &osc7a, &osc8a, &osc9a, &osc10a, &osc11a, &osc12a, &osc13a, &osc14a, &osc15a, &osc16a, &osc17a, &osc18a, &osc19a, &osc20a, &osc21a, &osc22a, &osc23a, &osc24a, &osc25a, &osc26a, &osc27a, &osc28a, &osc29a, &osc30a, &osc31a, &osc32a };
AudioSynthWaveformModulated *oscsB[NUM_VOICES] = { &osc1b, &osc2b, &osc3b, &osc4b, &osc5b, &osc6b, &osc7b, &osc8b, &osc9b, &osc10b, &osc11b, &osc12b, &osc13b, &osc14b, &osc15b, &osc16b, &osc17b, &osc18b, &osc19b, &osc20b, &osc21b, &osc22b, &osc23b, &osc24b, &osc25b, &osc26b, &osc27b, &osc28b, &osc29b, &osc30b, &osc31b, &osc32b};
AudioEffectEnvelope *envelopes[NUM_VOICES] = { &envelope1, &envelope2, &envelope3, &envelope4, &envelope5, &envelope6, &envelope7, &envelope8, &envelope9, &envelope10, &envelope11, &envelope12, &envelope13, &envelope14, &envelope15, &envelope16, &envelope17, &envelope18, &envelope19, &envelope20, &envelope21, &envelope22, &envelope23, &envelope24, &envelope25, &envelope26, &envelope27, &envelope28, &envelope29, &envelope30, &envelope31, &envelope32 };
Bounce *mybutton[] = { &button0, &button1, &button2, &button3, &button4, &button5, &button6, &button7};
// My synth has 8 onboard buttons. This sets the MIDI notes for each button
const float buttonFreqs[8] = {48, 50, 52, 53, 55, 57, 59, 60};
// Array to store how long a voice is playing, in milliseconds
unsigned long voiceOnTimes[NUM_VOICES] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
// A bool array. Boolean arrays hold either a true or false value at each array position. 0's and 1's also work
bool idleVoices[NUM_VOICES] = {true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true };
// Array to hold played note frequency values. 255 is jammed in there as a place holder
byte voiceToNote[NUM_VOICES] = {255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }; // Dummy value outside range of valid notes is used to init each.
// Millisecond timer variable set to zero to start
elapsedMillis readPots = 0;
// Function named NoteOn, receives 3 variables that can be use in the function. MIDI channel, MIDI note, and note velocity
void NoteOn(byte channel, byte note, byte velocity) {
// Set a boolean variable named 'found' to false, or zero. Boolean values can only be true or false, 0 or 1.
bool found = false;
// Set an integer variable named voiceToUse to 0
int voiceToUse = 0;
// Acquire an idle voice if possible.
for (int i = 0; i < NUM_VOICES; i++) {
// if the next idleVoices entry is TRUE...
if (idleVoices[i]) {
// ...set voice to use variable to the number corresponding to that idleVoices entry
voiceToUse = i;
// Set found to 1 or true
found = 1;
// Kill this loop
break;
}
}
// Steal voice if needed.
// If found is FALSE...
if (!found) {
// ...create a variable named oldest and set its value to milliseconds clock
unsigned long oldest = millis();
for (int i = 0; i < NUM_VOICES; i++) {
// if the current voiceOnTimes is less than oldest
if (voiceOnTimes[i] < oldest) {
// Set that voiceOnTime value to the current oldest value
oldest = voiceOnTimes[i];
// Increment voiceToUse value
voiceToUse = i;
}
}
}
// Now use the acquired voice.
//Set that voice entry to false
idleVoices[voiceToUse] = false;
// Set voiceToUse entry to MIDI note value that was just pressed
voiceToNote[voiceToUse] = note;
AudioNoInterrupts();
oscsA[voiceToUse]->frequency(noteFreqs[note]);
oscsA[voiceToUse]->amplitude(.5f);
oscsB[voiceToUse]->frequency(detune * noteFreqs[note]);
oscsB[voiceToUse]->amplitude(.5f);
envelopes[voiceToUse]->noteOn();
AudioInterrupts();
voiceOnTimes[voiceToUse] = millis();
}
// Function named NoteOff, receives 3 variables that can be use in the function. MIDI channel, MIDI note, and note velocity
void NoteOff(byte channel, byte note, byte velocity) {
for (int i = 0; i < NUM_VOICES; i++) {
// Do this 32(NUM_VOICES value) times
if (voiceToNote[i] == note) {
envelopes[i]->noteOff();
voiceToNote[i] = -1;
}
}
}
void IdleCheck(void) {
for (uint8_t i = 0; i < NUM_VOICES; i++) {
// Checks all 32 envelopes, if an envelope IS NOT ACTIVE ( thats the "!" ) set that envelopes corresponding oscillators amplitude to zero
if (!envelopes[i]->isActive()) {
oscsA[i]->amplitude(0);
oscsB[i]->amplitude(0);
// Set the voices corresponding entry in the idleVoices array to 1, or true
idleVoices[i] = 1;
} else {
// Otherwise set the voices corresponding entry in the idleVoices array to 0, or false
idleVoices[i] = false;
}
}
}
void setup() {
// Audio programs need memory to be allocated. 160 is probably a lot more than I need
AudioMemory(160);
// Start serial and start usb object.
Serial.begin(115200);
myusb.begin();
// Set the pin mode of my 8 buttons
pinMode(25, INPUT_PULLUP);
pinMode(26, INPUT_PULLUP);
pinMode(27, INPUT_PULLUP);
pinMode(28, INPUT_PULLUP);
pinMode(29, INPUT_PULLUP);
pinMode(30, INPUT_PULLUP);
pinMode(31, INPUT_PULLUP);
pinMode(32, INPUT_PULLUP);
// Each mixer has 4 inputs. This cycles through all my mixers setting the gain 4 times so I only have to type them out once :)
for (int i = 0; i < 4; i++) {
// Set all mixers.
voice1Mixer.gain(i, .5f);
voice2Mixer.gain(i, .5f);
voice3Mixer.gain(i, .5f);
voice4Mixer.gain(i, .5f);
voice5Mixer.gain(i, .5f);
voice6Mixer.gain(i, .5f);
voice7Mixer.gain(i, .5f);
voice8Mixer.gain(i, .5f);
voice9Mixer.gain(i, .5f);
voice10Mixer.gain(i, .5f);
voice11Mixer.gain(i, .5f);
voice12Mixer.gain(i, .5f);
voice13Mixer.gain(i, .5f);
voice14Mixer.gain(i, .5f);
voice15Mixer.gain(i, .5f);
voice16Mixer.gain(i, .5f);
voice17Mixer.gain(i, .5f);
voice18Mixer.gain(i, .5f);
voice19Mixer.gain(i, .5f);
voice20Mixer.gain(i, .5f);
voice21Mixer.gain(i, .5f);
voice22Mixer.gain(i, .5f);
voice23Mixer.gain(i, .5f);
voice24Mixer.gain(i, .5f);
voice25Mixer.gain(i, .5f);
voice26Mixer.gain(i, .5f);
voice27Mixer.gain(i, .5f);
voice28Mixer.gain(i, .5f);
voice29Mixer.gain(i, .5f);
voice30Mixer.gain(i, .5f);
voice31Mixer.gain(i, .5f);
voice32Mixer.gain(i, .5f);
voiceMixer1.gain(i, .5f);
voiceMixer2.gain(i, .5f);
voiceMixer3.gain(i, .5f);
voiceMixer4.gain(i, .5f);
voiceMixer5.gain(i, .5f);
voiceMixer6.gain(i, .5f);
voiceMixer7.gain(i, .5f);
voiceMixer8.gain(i, .5f);
subMixer1.gain(i, .5f);
subMixer2.gain(i, .5f);
lastMixer.gain(i, .6f);
// Set oscs to default waves
oscsA[i]->begin(wave1);
oscsB[i]->begin(wave2);
// Set envelopes to something reasonable
envelopes[i]->attack(attackKnob);
envelopes[i]->decay(10);
envelopes[i]->sustain(.5f);
envelopes[i]->release(releaseKnob);
// Set default filter value
int filterKnob = 10000 * analogRead(A3) / 1023;
filter1.frequency(filterKnob);
}
// Enable codec
sgtl5000_1.enable();
sgtl5000_1.volume(.5f);
// Set USB MIDI device callbacks. Each time a note is pressed call NoteOn function, each time its released call NoteOff function.
midi1.setHandleNoteOff(NoteOff);
midi1.setHandleNoteOn(NoteOn);
}
void loop() {
// Only read pots every 50 milliseconds to reduce glitchiness due to noise...
// This could be done with averaging or something instead
if (readPots >= 50) {
// Reset elapsed time
readPots = 0;
// Set variables to knob values
float cents = 100 * analogRead(A17) / 1023;
float detune = pow(2, (cents / 1200));
// Only execute this code if knob has been moved
if (centsTemp != cents) {
// Reset variable to knob value
centsTemp = cents;
for (int i = 0; i < NUM_VOICES; i++) {
if (voiceToNote[i] != 255) {
oscsB[i]->frequency((1.0f / detune) * noteFreqs[voiceToNote[i]]);
// Uncomment to see value in serial monitor
// Serial.println(voiceToNote[i]);
// Serial.println(detune);
}
}
}
// Read waveform selection pots
int wave1Temp = map(analogRead(A14), 0, 1023, WAVEFORM_SINE, WAVEFORM_TRIANGLE);
int wave2Temp = map(analogRead(A16), 0, 1023, WAVEFORM_SINE, WAVEFORM_TRIANGLE);
// Update A oscs only if waveform has changed.
// Oscillator phase will be reset by calling begin(), that's why we only want to do it when knob has changed
if (wave1Temp != wave1) {
//Reset variable to knob value
wave1 = wave1Temp;
// Uncomment to see value in serial monitor
// Serial.printf("Knob 1: %d\n", wave1);
// Cycle through all oscA pointer array values and restart them with the new wave value. FYI when working with pointers -> means put a . after the array value
// So this essentially executes osc1a.begin(value of wave1); then osc2a.begin(value of wave1) and so on
for (int i = 0; i < NUM_VOICES; i++) {
oscsA[i]->begin(wave1);
}
}
// Same thing for B oscs
if (wave2Temp != wave2) {
wave2 = wave2Temp;
// Uncomment to see value in serial monitor
// Serial.printf("Knob 2: %d\n", wave2);
for (int i = 0; i < NUM_VOICES; i++) {
oscsB[i]->begin(wave2);
}
}
//Lowpass Filter
// Set variables to knob values
int filterKnob = 10000 * analogRead(A3) / 1023;
// Only execute this code if knob has been moved
if (filterTemp != filterKnob) {
//Reset variable to knob value
filterTemp = filterKnob;
filter1.frequency(filterKnob);
//Resonance will be controlled by its own knob eventually. Set a resonable value for now
filter1.resonance(3.8);
}
//Attack and Release
// Set variables to knob values
int attackKnob = 11880 * analogRead(A0) / 1023;
int releaseKnob = 11880 * analogRead(A1) / 1023;
// Only execute this code if knob has been moved
if (attackTemp != attackKnob) {
attackTemp = attackKnob;
// Cycle through all envelopes pointer array values and sets new attack value. FYI when working with pointers -> means put a . after the array value
// So this essentially executes envelope1.attack(value of attackKnob); then envelope1.attack(value of attackKnob) and so on
for (int i = 0; i < NUM_VOICES; i++) {
envelopes[i]->attack(attackKnob);
}
}
// Same as Attack code
if (releaseTemp != releaseKnob) {
releaseTemp = releaseKnob;
for (int i = 0; i < NUM_VOICES; i++) {
envelopes[i]->release(releaseKnob);
}
}
}
// Do this 8 times for my 8 buttons
for (int i = 0; i < 8; i++) {
// button1.update(); button2.update(); button3.update()...
mybutton[i]->update();
// button1.fallingEdge(); button2.fallingEdge(); button3.fallingEdge()...
if (mybutton[i]->fallingEdge()) {
// When button is pressed send channel 1, corresponding buttonFreqs array value, and globalVelocity value to NoteOn() function
NoteOn(1, buttonFreqs[i], globalVelocity);
}
// button1.risingEdge(); button2.risingEdge(); button3.risingEdge()...
if (mybutton[i]->risingEdge()) {
// When button is released send channel 1, corresponding buttonFreqs array value, and globalVelocity value to NoteOff() function
NoteOff(1, buttonFreqs[i], globalVelocity);
}
}
// Run idleCheck function to see if any voices are not running and then turn them off
IdleCheck();
// Check incoming MIDI
midi1.read();
}
Comments are good. Comments that state the obvious just add clutter. It's a fine line.
The loop in your NoteOff() function should terminate on first match:
It's a bit esoteric, since this might never happen...Code:// Function named NoteOff, receives 3 variables that can be use in the function. MIDI channel, MIDI note, and note velocity
void NoteOff(byte channel, byte note, byte velocity) {
for (int i = 0; i < NUM_VOICES; i++) {
// Do this 32(NUM_VOICES value) times
if (voiceToNote[i] == note) {
envelopes[i]->noteOff();
voiceToNote[i] = -1;
break; // Exit loop on first match
}
}
}
Thats a good point. I thought I went a bit overboard, lol. Thanks for your addition, I will definitely slim down the comments.
Hey, well I can explain the voice stealing part pretty quickly. Millis() returns the time in milliseconds since power on. So to find the voice that has been on the longest (so we can steal it), we need to find the *lowest* value in the voiceOnTimes array. To find the lowest value, just iterate through the voiceOnTimes array and keep track of the smallest value ('oldest') and the array index of the voice we'll steal from ('voiceToUse'). At the end of NoteOn, I store millis() into the voiceOnTimes array for the voice that was acquired or stolen. That's where that array gets populated. Anyway, hope that helps.
Thanks Wcalvert, that helped a lot! You have been very generous with your time and I cant thank you enough. Happy Holidays!