VAR-SOM-MX6 Audio record play: Difference between revisions

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                       imx-hdmi-soc
                       imx-hdmi-soc
</pre>
</pre>
<pre>
root@var-som-mx6:~# aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
sysdefault:CARD=tlv320aic3xaudi
    tlv320aic3x-audio,
    Default Audio Device
sysdefault:CARD=imxhdmisoc
    imx-hdmi-soc,
    Default Audio Device
surround40:CARD=imxhdmisoc,DEV=0
    imx-hdmi-soc,
    4.0 Surround output to Front and Rear speakers
surround41:CARD=imxhdmisoc,DEV=0
    imx-hdmi-soc,
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=imxhdmisoc,DEV=0
    imx-hdmi-soc,
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=imxhdmisoc,DEV=0
    imx-hdmi-soc,
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=imxhdmisoc,DEV=0
    imx-hdmi-soc,
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
</pre>





Revision as of 13:14, 16 December 2015

VAR-SOM-MX6 - Audio Record/Play

Get information on the Sound Cards

root@var-som-mx6:~# cat /proc/asound/cards
 0 [tlv320aic3xaudi]: tlv320aic3x-aud - tlv320aic3x-audio
                      tlv320aic3x-audio
 1 [imxhdmisoc     ]: imx-hdmi-soc - imx-hdmi-soc
                      imx-hdmi-soc
root@var-som-mx6:~# aplay -L

null
    Discard all samples (playback) or generate zero samples (capture)
sysdefault:CARD=tlv320aic3xaudi
    tlv320aic3x-audio, 
    Default Audio Device
sysdefault:CARD=imxhdmisoc
    imx-hdmi-soc, 
    Default Audio Device
surround40:CARD=imxhdmisoc,DEV=0
    imx-hdmi-soc, 
    4.0 Surround output to Front and Rear speakers
surround41:CARD=imxhdmisoc,DEV=0
    imx-hdmi-soc, 
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=imxhdmisoc,DEV=0
    imx-hdmi-soc, 
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=imxhdmisoc,DEV=0
    imx-hdmi-soc, 
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=imxhdmisoc,DEV=0
    imx-hdmi-soc, 
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers


$ amixer set PCM 125
$ aplay /usr/share/sounds/alsa/Front_Center.wav
$ arecord -f cd -d 10 -D hw:0,0 test.wav
$ aplay test.wav