38 lines
1.2 KiB
Arduino
38 lines
1.2 KiB
Arduino
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#include "AudioTools.h"
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int pitch_buffer_size = 256;
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float pitch_shift = 1.5;
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AudioInfo info(44100, 1, 16);
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SineGenerator<int16_t> sineWave(32000); // subclass of SoundGenerator with max amplitude of 32000
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GeneratedSoundStream<int16_t> sound(sineWave); // Stream generated from sine wave
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CsvOutput<int16_t> out(Serial);
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PitchShiftOutput<int16_t, VariableSpeedRingBufferSimple<int16_t>> pitchShift(out);
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//PitchShiftOutput<int16_t, VariableSpeedRingBuffer180<int16_t>> pitchShift(out);
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//PitchShiftOutput<int16_t, VariableSpeedRingBuffer<int16_t>> pitchShift(out);
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StreamCopy copier(pitchShift, sound); // copies sound to out
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// Arduino Setup
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void setup(void) {
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// Open Serial
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Serial.begin(115200);
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AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
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// Define CSV Output
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out.begin(info);
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auto pcfg = pitchShift.defaultConfig();
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pcfg.copyFrom(info);
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pcfg.pitch_shift = pitch_shift;
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pcfg.buffer_size = pitch_buffer_size;
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pitchShift.begin(pcfg);
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// Setup sine wave
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sineWave.begin(info, N_B4);
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Serial.println("started...");
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}
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// Arduino loop - copy sound to out
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void loop() {
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copier.copy();
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}
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