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teensy-audio/examples/HardwareTesting/PassThroughUSB/PassThroughUSB.ino

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  1. #include <Audio.h>

  2. #include <Wire.h>

  3. #include <SPI.h>

  4. #include <SD.h>

  5. #include <SerialFlash.h>

  6. 

  7. AudioInputUSB            usb1;           //xy=200,69  (must set Tools > USB Type to Audio)

  8. AudioOutputI2S           i2s1;           //xy=365,94

  9. AudioConnection          patchCord1(usb1, 0, i2s1, 0);

  10. AudioConnection          patchCord2(usb1, 1, i2s1, 1);

  11. AudioControlSGTL5000     sgtl5000_1;     //xy=302,184

  12. 

  13. void setup() {                

  14.   AudioMemory(12);

  15.   sgtl5000_1.enable();

  16.   sgtl5000_1.volume(0.6);

  17. }

  18. 

  19. void loop() {

  20.   // TODO: make PC's volume setting control the SGTL5000 volume...

  21. }

  22. 

  23. // A known problem occurs on Macintosh computers, where the Mac's driver

  24. // does not seem to be able to adapt and transmit horribly distorted

  25. // audio to Teensy after a matter of minutes.  An imperfect workaround

  26. // can be enabled by editing usb_audio.cpp.  Find and uncomment

  27. // "#define MACOSX_ADAPTIVE_LIMIT".  More detailed info is available here:

  28. // https://forum.pjrc.com/threads/34855-Distorted-audio-when-using-USB-input-on-Teensy-3-1?p=110392&viewfull=1#post110392