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74 lines
1.8 KiB
74 lines
1.8 KiB
3 years ago
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// Plays a RAW (16-bit signed) PCM audio file at slower or faster rate
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// this example requires an uSD-card inserted to teensy 3.6 with a file called DEMO.RAW
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#include <Arduino.h>
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#include <AudioStream.h>
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#include <Audio.h>
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#include "SD.h"
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#include "playsdresmp.h"
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// GUItool: begin automatically generated code
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AudioControlSGTL5000 audioShield;
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AudioPlaySdResmp playSdRaw1; //xy=324,457
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AudioOutputI2S i2s2; //xy=840.8571472167969,445.5714416503906
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AudioConnection patchCord1(playSdRaw1, 0, i2s2, 0);
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AudioConnection patchCord2(playSdRaw1, 0, i2s2, 1);
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// GUItool: end automatically generated code
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#define A14 10
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#define BUILTIN_SDCARD 10
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const char* _filename = "DEMO.RAW";
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const int analogInPin = A14;
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int sensorValue = 0;
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void setup() {
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analogReference(0);
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pinMode(analogInPin, INPUT);
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Serial.begin(57600);
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if (!(SD.begin(BUILTIN_SDCARD))) {
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// stop here if no SD card, but print a message
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while (1) {
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Serial.println("Unable to access the SD card");
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delay(500);
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}
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}
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AudioMemory(24);
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audioShield.enable();
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audioShield.volume(0.5);
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playSdRaw1.playRaw(_filename, 1);
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playSdRaw1.setPlaybackRate(-1);
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Serial.println("playing...");
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}
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void loop() {
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int newsensorValue = analogRead(analogInPin);
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if (newsensorValue / 64 != sensorValue / 64) {
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sensorValue = newsensorValue;
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float rate = (sensorValue - 512.0) / 512.0;
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playSdRaw1.setPlaybackRate(rate);
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Serial.printf("rate: %f %x\n", rate, sensorValue);
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}
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if (!playSdRaw1.isPlaying()) {
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Serial.println("playing...");
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playSdRaw1.playRaw(_filename, 1);
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}
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}
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#ifdef BUILD_FOR_LINUX
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int main() {
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initialize_mock_arduino();
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SD.setSDCardFileData("234234234", 5);
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setup();
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while(true){
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loop();
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}
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}
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#endif
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