Jean-ClaudeF
Active member
Here is my variation of the SimplePolySynt:
It has a Voice tab with 2 slightly detuned oscillators that give a richer sound to the SINE wave.
Next step will be to add external control elements like potentiometers and switches.
Code:
{"version":1,"settings":{"main":{},"OSC":{},"arduino":{"ExportMode":2,"ZipExportUseSubFolder":true,"ProjectName":"SimplePolySynth","Board":{"Platform":"","Board":"","Options":""}},"BiDirDataWebSocketBridge":{},"workspaces":{},"sidebar":{},"palette":{},"editor":{},"devTest":{},"IndexedDBfiles":{"testFileNames":"testFile.txt"},"NodeDefGenerator":{},"NodeDefManager":{},"NodeHelpManager":{}},"workspaces":[{"type":"tab","id":"Main","label":"Voice","nodes":[{"id":"Voice_Out1","type":"TabOutput","name":"OutC","comment":"","x":650,"y":155,"z":"Main","bgColor":"#CCE6FF","wires":[]},{"id":"Voice_vars1","type":"Variables","name":"vars","comment":"byte note = 0; // to store the current or previous note played\nbyte isNoteOn = 0; // used by the sustain function\nbyte isSustain = 0;\n","x":55,"y":110,"z":"Main","bgColor":"#DDFFBB","wires":[]},{"id":"Voice_code1","type":"Function","name":"begin","comment":"// used to simplify initialization from the \"parent\" class\nvoid begin()\n{\n wf1.begin(1.0, 110, WAVEFORM_SINE);\n wf2.begin(1.0, 110, WAVEFORM_SINE);\n}\n","x":60,"y":155,"z":"Main","bgColor":"#DDFFBB","wires":[]},{"id":"Voice_code2","type":"Function","name":"note on/off functions","comment":"/*\n * this takes care of all the tasks that\n * needs to be taken care of when doing\n * a note on/off\n */\n \nvoid noteOn(byte Note, byte velocity)\n{\n float newAmp = 0.0f;\n if (Note >= sizeof(noteFreqs)) return;\n \n note = Note;\n isNoteOn = 1;\n \n newAmp = (float)velocity*(1.0f / 127.0f)/2;\n \n wf1.frequency(noteFreqs[note]);\n wf2.frequency(noteFreqs[note]+2);\n \n wf1.amplitude(newAmp);\n wf2.amplitude(newAmp);\n \n env.noteOn();\n}\n\nvoid noteOff()\n{\n isNoteOn = 0;\n if (!isSustain)\n {\n env.noteOff();\n }\n}\n\nbool isNotPlaying()\n{\n if (!env.isActive())\n return true;\n else\n return false;\n}\n","x":110,"y":200,"z":"Main","bgColor":"#DDFFBB","wires":[]},{"id":"Voice_waveform2","type":"AudioSynthWaveform","name":"wf1","comment":"","arraySize":"","x":265,"y":135,"z":"Main","bgColor":"#E6E0F8","wires":[["20220304T090427_755Z_fbe9:0"]]},{"id":"20220304T090337_861Z_b867","type":"AudioSynthWaveform","name":"wf2","comment":"","arraySize":"","x":265,"y":180,"z":"Main","bgColor":"#E6E0F8","wires":[["20220304T090427_755Z_fbe9:1"]]},{"id":"20220304T090427_755Z_fbe9","type":"AudioMixer4","name":"mixer4","comment":"","arraySize":1,"x":400.25,"y":154.25,"z":"Main","bgColor":"#E6E0F8","wires":[["Voice_envelope1:0"]]},{"id":"Voice_envelope1","type":"AudioEffectEnvelope","name":"env","comment":"","x":535,"y":155,"z":"Main","bgColor":"#E6E0F8","wires":[["Voice_Out1:0"]]}],"links":[],"export":true,"isMain":false,"mainNameType":"tabName","mainNameExt":".ino","isAudioMain":false,"generateCppDestructor":false,"extraClassDeclarations":"","settings":{"showGridHminor":false,"showGridHmajor":false,"showGridVminor":false,"showGridVmajor":false}},{"type":"tab","id":"20220304T084715_042Z_58f2","label":"NoteFreqs","nodes":[{"id":"20220304T084824_559Z_a1c7","type":"Variables","name":"noteFreqs","comment":"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};\n","x":135,"y":110,"z":"20220304T084715_042Z_58f2","bgColor":"#DDFFBB","wires":[]}],"links":[],"export":true,"isMain":false,"mainNameType":"main","mainNameExt":".ino","isAudioMain":false,"generateCppDestructor":false,"extraClassDeclarations":"","settings":{}},{"type":"tab","id":"9992a3f3.e2a248","label":"Synth","nodes":[{"id":"Synth_constValue1","type":"ConstValue","name":"VOICE_COUNT","value":"8","valueType":"int","x":140,"y":105,"z":"9992a3f3.e2a248","bgColor":"#EB9834","wires":[]},{"id":"Synth_Voice1","type":"Voice","name":"voices[VOICE_COUNT]","arraySize":8,"x":140,"y":170,"z":"9992a3f3.e2a248","bgColor":"#CCFFCC","wires":[["Synth_mixer1:0"]]},{"id":"Synth_vars1","type":"Variables","name":"const vars","comment":"const float DIV127 = (1.0 / 127.0);\nconst float DIV100 = 0.01;\nconst float DIV64 = (1.0/64.0);\nconst float DIV360BY127 = (360.0/127.0);\nconst float DIV360BY120 = (3.0);","x":150,"y":220,"z":"9992a3f3.e2a248","bgColor":"#DDFFBB","wires":[]},{"id":"Synth_code1","type":"Function","name":"begin","comment":"// used to simplify initialization from the \"parent\" class\nvoid begin()\n{\n sgtl5000.enable();\n sgtl5000.volume(0.5);\n for (int i = 0; i < VOICE_COUNT; i++)\n {\n voices[i].begin();\n mixVoices.gain(i, 0.8f/VOICE_COUNT); // set max to 0.8 to avoid clippin\n }\n}\n","x":135,"y":260,"z":"9992a3f3.e2a248","bgColor":"#DDFFBB","wires":[]},{"id":"Synth_code2","type":"Function","name":"note on/off functions","comment":"void noteOn(byte note, byte velocity)\n{\n //digitalWrite(NOTE_PRESSED_STATE_LED, HIGH); //any note \"pressed\"\n // fist checks if this note is allready playing\n // it that is the case then it \"reuses\" this \"slot\"\n // this makes sure that not all \"slots\" is filled\n // with the same playing note\n // if the MIDI keyboard is for some reason\n // not sending a noteoff (my keyboard is sometimes glitching)\n // and when sending MIDI from my computer for fast playing songs\n for (int i = 0; i < VOICE_COUNT; i++) \n {\n // first check if the note was played recently\n if (voices[i].note == note) \n {\n voices[i].noteOn(note, velocity);\n //digitalWrite(NOTE_OVERFLOWN_LED, LOW);\n return; \n }\n }\n // then if the note has not allready been played\n // // second see if there is any free \"spot\"\n for (int i = 0; i < VOICE_COUNT; i++) \n {\n if (voices[i].isNotPlaying())\n {\n voices[i].noteOn(note, velocity);\n //digitalWrite(NOTE_OVERFLOWN_LED, LOW); // clear overflown notification\n return;\n }\n }\n //digitalWrite(NOTE_OVERFLOWN_LED, HIGH); // this is a notification that there was no free spots\n}\n\nvoid noteOff(byte note)\n{\n //digitalWrite(NOTE_PRESSED_STATE_LED, LOW); //any note \"released\"\n for (int i = 0; i < VOICE_COUNT; i++)\n {\n if (voices[i].note == note)\n {\n voices[i].noteOff();\n return;\n }\n }\n}\n","x":180,"y":300,"z":"9992a3f3.e2a248","bgColor":"#DDFFBB","wires":[]},{"id":"Synth_code3","type":"Function","name":"sustain functions","comment":"void activateSustain()\n{\n for (int i = 0; i < VOICE_COUNT; i++)\n {\n voices[i].isSustain = 1;\n }\n}\n\nvoid deactivateSustain()\n{\n for (int i = 0; i < VOICE_COUNT; i++)\n {\n voices[i].isSustain = 0;\n if (!voices[i].isNoteOn)\n voices[i].noteOff();\n }\n}","x":170,"y":340,"z":"9992a3f3.e2a248","bgColor":"#DDFFBB","wires":[]},{"id":"Synth_mixer1","type":"AudioMixer","name":"mixVoices","comment":"","inputs":"1","RealInputs":8,"x":325,"y":169,"z":"9992a3f3.e2a248","bgColor":"#E6E0F8","wires":[["Synth_i2s1:0","Synth_i2s1:1","Synth_pt8211_2_1:0","Synth_pt8211_2_1:1"]]},{"id":"Synth_pt8211_2_1","type":"AudioOutputPT8211_2","name":"pt8211_2","comment":"","x":498,"y":116,"z":"9992a3f3.e2a248","bgColor":"#E6E0F8","wires":[]},{"id":"Synth_i2s1","type":"AudioOutputI2S","name":"i2s","comment":"","x":480,"y":170,"z":"9992a3f3.e2a248","bgColor":"#E6E0F8","wires":[]},{"id":"Synth_sgtl5000_1","type":"AudioControlSGTL5000","name":"sgtl5000","comment":"","x":485,"y":225,"z":"9992a3f3.e2a248","bgColor":"#E6E0F8","wires":[]},{"id":"Synth_Comment1","type":"Comment","name":"VOICE_COUNT is just a constant and is just a easy way to define the amount and can then be used in the begin loop for a global way of manipulating the amount of voices","comment":"","x":595,"y":485,"z":"9992a3f3.e2a248","bgColor":"#DDFFBB","wires":[]}],"links":[],"export":true,"isMain":false,"mainNameType":"tabName","mainNameExt":".ino","isAudioMain":false,"generateCppDestructor":false,"extraClassDeclarations":"","settings":{}},{"type":"tab","id":"b266f916.2de8e","label":"Main","nodes":[{"id":"Main_includeDef1","type":"IncludeDef","name":"<MIDI.h>","comment":"","x":95,"y":65,"z":"b266f916.2de8e","bgColor":"#DDFFBB","wires":[]},{"id":"Main_Synth1","type":"Synth","name":"synth","x":85,"y":110,"z":"b266f916.2de8e","bgColor":"#ccffcc","wires":[]},{"id":"Main_vars1","type":"Variables","name":"global vars","comment":"const int ledPin = 13;","x":105,"y":150,"z":"b266f916.2de8e","bgColor":"#DDFFBB","wires":[]},{"id":"Main_code2","type":"Function","name":"forward declarations","comment":"\nvoid uartMidi_NoteOn(byte channel, byte note, byte velocity);\nvoid uartMidi_NoteOff(byte channel, byte note, byte velocity);\nvoid uartMidi_ControlChange(byte channel, byte control, byte value);\nvoid uartMidi_PitchBend(byte channel, int value);\n\nvoid usbMidi_NoteOn(byte channel, byte note, byte velocity);\nvoid usbMidi_NoteOff(byte channel, byte note, byte velocity);\nvoid usbMidi_ControlChange(byte channel, byte control, byte value);\nvoid usbMidi_PitchBend(byte channel, int value);\n\nvoid blinkLedTask(void);","x":135,"y":190,"z":"b266f916.2de8e","bgColor":"#DDFFBB","wires":[]},{"id":"Main_code3","type":"Function","name":"MIDI_CREATE_INSTANCE","comment":"MIDI_CREATE_INSTANCE(HardwareSerial, Serial1, MIDI);","x":155,"y":230,"z":"b266f916.2de8e","bgColor":"#DDFFBB","wires":[]},{"id":"Main_code4","type":"Function","name":"setup() function","comment":"\n// Arduino setup() function\nvoid setup()\n{\n AudioMemory(96);\n\n MIDI.begin();\n MIDI.setHandleNoteOn(uartMidi_NoteOn);\n MIDI.setHandleNoteOff(uartMidi_NoteOff);\n MIDI.setHandleControlChange(uartMidi_ControlChange);\n MIDI.setHandlePitchBend(uartMidi_PitchBend);\n\n usbMIDI.setHandleNoteOn(usbMidi_NoteOn);\n usbMIDI.setHandleNoteOff(usbMidi_NoteOff);\n usbMIDI.setHandleControlChange(usbMidi_ControlChange);\n usbMIDI.setHandlePitchChange(usbMidi_PitchBend);\n\n synth.begin();\n\n pinMode(ledPin, OUTPUT);\n digitalWrite(ledPin, LOW);\n}\n","x":125,"y":270,"z":"b266f916.2de8e","bgColor":"#DDFFBB","wires":[]},{"id":"Main_code5","type":"Function","name":"loop() function","comment":"\n// Arduino loop() function\nvoid loop()\n{\n usbMIDI.read();\n MIDI.read();\n blinkLedTask();\n}","x":120,"y":310,"z":"b266f916.2de8e","bgColor":"#DDFFBB","wires":[]},{"id":"Main_code6","type":"Function","name":"uartMidi handler functions","comment":"\n// uartMidi handler functions\nvoid uartMidi_NoteOn(byte channel, byte note, byte velocity) {\n //velocity = 127 - velocity; should not be needed on a normal midi keyboard\n synth.noteOn(note, velocity);\n usbMIDI.sendNoteOn(note, velocity, channel, 0);\n}\n\nvoid uartMidi_NoteOff(byte channel, byte note, byte velocity) {\n //velocity = 127 - velocity; should not be needed on a normal midi keyboard\n synth.noteOff(note);\n usbMIDI.sendNoteOff(note, velocity, channel, 0);\n}\n\nvoid uartMidi_ControlChange(byte channel, byte control, byte value) {\n usbMIDI.sendControlChange(control, value, channel, 0x00);\n}\n\nvoid uartMidi_PitchBend(byte channel, int value) {\n usbMIDI.sendPitchBend(value, channel, 0x00);\n}","x":155,"y":350,"z":"b266f916.2de8e","bgColor":"#DDFFBB","wires":[]},{"id":"Main_code7","type":"Function","name":"usbMidi handler functions","comment":"\n// usbMidi handler functions\nvoid usbMidi_NoteOn(byte channel, byte note, byte velocity) {\n synth.noteOn(note, velocity);\n}\n\nvoid usbMidi_NoteOff(byte channel, byte note, byte velocity) {\n synth.noteOff(note); \n}\n\nvoid usbMidi_PitchBend(byte channel, int value) {\n \n}\n\nvoid usbMidi_ControlChange(byte channel, byte control, byte value) {\n if (control == 64) {\n if (value == 0)\n synth.deactivateSustain();\n else if (value == 127)\n synth.activateSustain();\n }\n}","x":155,"y":390,"z":"b266f916.2de8e","bgColor":"#DDFFBB","wires":[]},{"id":"Main_code1","type":"Function","name":"blink led task","comment":"\n// blinkLedTask() function\nvoid blinkLedTask(void)\n{\n // set the following to static so that they\n // be kept here inside\n static int ledState = LOW; // ledState used to set the LED\n static unsigned long previousMillis = 0; // will store last time LED was updated\n static unsigned long currentMillis = 0;\n static unsigned long currentInterval = 0;\n static unsigned long ledBlinkOnInterval = 100;\n static unsigned long ledBlinkOffInterval = 2000;\n currentMillis = millis();\n currentInterval = currentMillis - previousMillis;\n \n if (ledState == LOW)\n {\n if (currentInterval > ledBlinkOffInterval)\n {\n previousMillis = currentMillis;\n ledState = HIGH;\n digitalWrite(ledPin, HIGH);\n }\n }\n else\n {\n if (currentInterval > ledBlinkOnInterval)\n {\n previousMillis = currentMillis;\n ledState = LOW;\n digitalWrite(ledPin, LOW);\n }\n }\n}","x":115,"y":430,"z":"b266f916.2de8e","bgColor":"#DDFFBB","wires":[]}],"links":[],"export":true,"isMain":true,"mainNameType":"projectName","mainNameExt":".ino","isAudioMain":false,"generateCppDestructor":false,"extraClassDeclarations":"","settings":{}},{"type":"tab","id":"873fcd60.e74438","label":"ClassIO_demo","nodes":[{"id":"ClassIO_demo_ClassIOorder1","type":"ClassIOorder","name":"classioorder","x":210,"y":155,"z":"873fcd60.e74438","bgColor":"#ccffcc","wires":[[],[],[]]},{"id":"ClassIO_demo_Comment1","type":"Comment","name":"the order of theese outputs represent the inner TabOutput:s order Top-Bottom","comment":"","x":565,"y":155,"z":"873fcd60.e74438","bgColor":"#DDFFBB","wires":[]}],"links":[],"export":false,"isMain":false,"mainNameType":"projectName","mainNameExt":".ino","isAudioMain":false,"generateCppDestructor":false,"extraClassDeclarations":"","settings":{}},{"type":"tab","id":"57ddab8d.76df5c","label":"ClassIOorder","nodes":[{"id":"ClassIOorder_Out1","type":"TabOutput","name":"OutC","comment":"","x":455,"y":160,"z":"57ddab8d.76df5c","bgColor":"#CCE6FF","wires":[]},{"id":"ClassIOorder_Out2","type":"TabOutput","name":"OutB","comment":"","x":455,"y":210,"z":"57ddab8d.76df5c","bgColor":"#CCE6FF","wires":[]},{"id":"ClassIOorder_Out3","type":"TabOutput","name":"OutA","comment":"","x":455,"y":255,"z":"57ddab8d.76df5c","bgColor":"#CCE6FF","wires":[]},{"id":"ClassIOorder_Comment1","type":"Comment","name":"the order (top to bottom) of theese outputs represents the order outside","comment":"","x":775,"y":165,"z":"57ddab8d.76df5c","bgColor":"#DDFFBB","wires":[]}],"links":[],"export":false,"isMain":false,"mainNameType":"projectName","mainNameExt":".ino","isAudioMain":false,"generateCppDestructor":false,"extraClassDeclarations":"","settings":{}}],"nodeAddons":{}}It has a Voice tab with 2 slightly detuned oscillators that give a richer sound to the SINE wave.
Next step will be to add external control elements like potentiometers and switches.
