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72 lines
1.8 KiB
72 lines
1.8 KiB
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#include <Audio.h>
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#include <OpenAudio_ArduinoLibrary.h>
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#define USE_F32_IO 1
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AudioControlSGTL5000 sgtl5000_1;
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#if USE_F32_IO
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#if USE_CODEC_IN
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#else // Use Sine Input
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AudioSynthWaveformSine_F32 sine1;
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AudioConvert_F32toI16 float2Int1; //, float2Int2;
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AudioOutputI2S i2sOut;
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//AudioOutputI2S_OA_F32 i2sOut;
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/*
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//Make all of the audio connections
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AudioConnection patchCord1(i2s_in, 0, int2Float1, 0);
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AudioConnection patchCord2(i2s_in, 1, int2Float2, 0);
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AudioConnection_F32 patchCord10(int2Float1, 0, gain1, 0);
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AudioConnection_F32 patchCord11(int2Float2, 0, gain2, 0);
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* */
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AudioConnection_F32 pc1(sine1, 0, float2Int1, 0);
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AudioConnection_F32 patchCord12(float2Int1, 0, i2sOut, 0);
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//AudioConnection_F32 patchCord13(gain2, 0, float2Int2, 0);
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//AudioConnection_F32 patchCord20(sine1, 0, i2sOut, 0);
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//AudioConnection_F32 patchCord21(sine1, 0, i2sOut, 1);
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//AudioConnection_F32 patchCord12(gain1, 0, i2sOut, 0);
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//AudioConnection_F32 patchCord13(gain2, 0, i2sOut, 1);
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/*AudioInputI2S i2s_in;
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AudioConvert_I16toF32 int2Float1, int2Float2;
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AudioEffectGain_F32 gain1, gain2;
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* */
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void setup(void) {
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Serial.begin(1); delay(1000);
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Serial.println("Open Audio Test Input and Output");
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AudioMemory(10);
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AudioMemory_F32(10);
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sgtl5000_1.enable();
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sgtl5000_1.inputSelect(AUDIO_INPUT_LINEIN);
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sine1.frequency(300.0);
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sine1.amplitude(0.01f);
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sine1.begin();
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/*
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//sgtl5000_1.adcHighPassFilterEnable(); //LOW OUTPUT NO WHINEY NOISE, gain has no effect---Direct path??
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//reduces noise. https://forum.pjrc.com/threads/27215-24-bit-audio-boards?p=78831&viewfull=1#post78831
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sgtl5000_1.adcHighPassFilterDisable(); gain1.setGain_dB(40); // NOISE WITH WHINEY PITCH
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gain2.setGain_dB(40);
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*/
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}
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void loop() {
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}
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