54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
// Simple wrapper for Arduino sketch to compilable with cpp in cmake
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#include "Arduino.h"
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#include "AudioTools.h"
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#include "AudioTools/AudioLibs/PortAudioStream.h"
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PortAudioStream out;
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SineWaveGenerator<int16_t> sine;
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AudioEffects<SineWaveGenerator<int16_t>> effects(sine);
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ADSRGain adsr(0.0001,0.0001, 0.9 , 0.0002);
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GeneratedSoundStream<int16_t> in(effects);
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StreamCopy copier(out, in);
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uint64_t timeout=0;
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float freq = N_C4;
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void setup() {
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Serial.begin(115200);
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AudioLogger::instance().begin(Serial,AudioLogger::Warning);
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// setup effects
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effects.addEffect(adsr);
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// Setup output
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auto cfg = out.defaultConfig();
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cfg.channels = 1;
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cfg.bits_per_sample = 16;
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cfg.sample_rate = 44100;
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out.begin(cfg);
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// Setup sound generation based on AudioKit settins
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effects.begin(cfg);
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sine.begin(cfg, 0);
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in.begin(cfg);
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sine.setFrequency(freq);
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}
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void loop() {
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// simulate key press
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if (millis()>timeout){
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sine.setFrequency(freq);
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adsr.keyOn();
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timeout = millis()+3000;
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}
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// simulate key release
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if (millis()>timeout+1000){
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sine.setFrequency(freq);
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adsr.keyOff();
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}
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// output audio
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copier.copy();
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}
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