TQMa8MPxL - YOCTO Linux BSP documentation
Audio
Audio Connector Overview
| Connector | Function |
|---|---|
| X15 | Microphone |
| X16 | Line In |
| X17 | Line Out |
The microphone input is not supported in the current BSP version.
Audio Connector Location
Play Audio on MBa8MPxL
A simple test sound can be played with the command-line tool speaker-test.
Headphones or active speakers have to be connected to X17 on MBa8MPxL.
speaker-test --channels 2 --test wav -D sysdefault:CARD=tqtlv320aic32x
You can also play your own audio files using aplay
aplay <file>
e.g.
aplay test.wav
Please note that the default image does not include audio test files.
Record Audio on MBa8MPxL
To record audio from the Line-In interface, use arecord:
arecord -f cd test.wav
The audio settings can be configured using
amixer or alsamixer