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README.md

Playback Example of WAV File Processed by ALC

This example is playing back a WAV file processed by an ALC.

Compatibility

ESP32-LyraT ESP32-LyraTD-MSC ESP32-LyraT-Mini
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Usage

Prepare the audio board:

  • Connect speakers or headphones to the board.
  • Insert a microSD card loaded with a WAV file 'test.wav' into board's card slot.

Load and run the example.

Additional Information

Two methods can implement volume setting with ALC.

  1. The one is through the function i2s_alc_volume_set in i2s_stream.h.
  2. The other is ALC as a independent element to be used. If USE_ALONE_ALC is defined, the second method will be selected. If not, the first will be selected.