====== Audio ======

<WRAP round important 50%>
Please see supported features list of your TQ module to verify that audio playback / recording is supported by the Board Support Package 
</WRAP>


==== Audio playback ====

The latest BSP revisions are preconfigured for audio playback, when audio is supported. 

Playback:
<code>
aplay testfile.wav
</code>

++++ example |
<code>
root@MBa6x:~ aplay testfile.wav
  Playing WAVE 'testfile' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
</code>
++++


==== Audio recording ====

In order to start audio recording via the Line In connector the following alsamixer settings have to be applied :
<code>
amixer set 'Right Input Mixer IN1_R P' unmute
amixer set 'Left Input Mixer IN1_L P' unmute
amixer set 'ADCFGA Right Mute' mute
amixer set 'ADCFGA Left Mute' mute
mount -o remount,rw /
</code>



Recording:
<code>
arecord -f cd testfile.wav
</code>

++++ example |
<code>
root@MBa6x:~ arecord -f cd testfile.wav
  Recording WAVE 'testfile' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
</code>
++++