USB Module Usage

USB Voice Module Usage Tutorial

Command set:

  • arecord -l - Identify microphone card number and device number (pay attention to card X and device Y)

  • arecord -L - List available PCM device names (e.g., plughw:1,0)

  • aplay -l - Check speaker/output device

  • sudo arecord -f S16_LE -r 16000 -c 1 -d 5 /tmp/test_mic.wav - Record for 5 seconds using default device, 16k/mono/16bit

  • aplay /tmp/test_mic.wav - Play audio

Terminal running example: (make sure the voice module and speaker are properly connected)

TOOL