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45 lines
1.5 KiB
45 lines
1.5 KiB
4 years ago
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/*
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SineCosOut.ino - Sine left, Cos right
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Bob Larkin 28 Dec 2020
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Basic test of I2S input and output.
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Tested on T3.6 and T4.0
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Public Domain
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*/
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#include "Audio.h" // Teensy I16 Audio Library
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#include "OpenAudio_ArduinoLibrary.h" // F32 library
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#include "AudioStream_F32.h"
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AudioSynthSineCosine_F32 sineCos;
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AudioAnalyzePeak_F32 peakL;
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AudioAnalyzePeak_F32 peakR;
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//AudioOutputI2S_OA_F32 i2sOut;
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AudioOutputI2S_F32 i2sOut;
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AudioConnection_F32 patchCord0(sineCos, 0, peakL, 0);
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AudioConnection_F32 patchCord1(sineCos, 1, peakR, 0);
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AudioConnection_F32 patchCord2(sineCos, 0, i2sOut, 0); // Sine
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AudioConnection_F32 patchCord3(sineCos, 1, i2sOut, 1); // Cosine
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AudioControlSGTL5000 codec1;
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void setup() {
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Serial.begin(9600); // (anything)
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delay(1000);
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Serial.println("OpenAudio_ArduinoLibrary - Sine-Cosine Stereo");
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// Internally, I16 memory blocks are used. Needs modification, but
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// for now, supply 4 for F32 input and 4 for F32 output (shared).
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AudioMemory(4);
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AudioMemory_F32(20);
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codec1.enable(); // MUST be before inputSelect()
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codec1.inputSelect(AUDIO_INPUT_LINEIN);
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sineCos.amplitude(0.2); sineCos.frequency(600.0f);
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}
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void loop() {
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Serial.print("Max float memory = ");
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Serial.println(AudioStream_F32::f32_memory_used_max);
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if(peakL.available()) Serial.print(peakL.read(), 6);
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Serial.print(" <-L R-> ");
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if(peakR.available()) Serial.println(peakR.read(), 6);
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delay(500);
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}
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