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Hi Thierry, Thanks for suggesting the mute, that was the problem.
Now I can record some audio but the static and noise level are very high; I can hear my speaking, but faintly. Are you of aware of anything about that? I'm going to play more with the levels and see if I can figure out what's going on.
thanks for the assistance, Jason. Date: Wed, 31 Oct 2018 16:58:21 +0100
From: Thierry Bultel <thierry.bultel@xxxxxxx>
To: automotive-discussions@xxxxxxxxxxxxxxxxxxxxxxxxx Subject: Re: Recording audio on M3+KF on AGL 6.0 Message-ID: <0ca6ff27-7c02-3a6f-7d15-91736e43fc95@xxxxxxx> Content-Type: text/plain; charset="windows-1252"; Format="flowed" Hi Jason, capturing with 4a is a work in progress. If the hw:2 is actually the sound card you want to capture from, the method you are using should work. I suspect that your input PCM is in mute state, there is a known issue about that Could you check or set it like this: m3ulcb:~# amixer -D hw:ak4613 cget iface=MIXER,name='DVC In Mute Switch' numid=15,iface=MIXER,name='DVC In Mute Switch' ? ; type=BOOLEAN,access=rw------,values=2 ? : values=*on,on* You can change the state this way: m3ulcb:~# amixer -D hw:ak4613 cset iface=MIXER,name='DVC In Mute Switch' *off* numid=15,iface=MIXER,name='DVC In Mute Switch' ? ; type=BOOLEAN,access=rw------,values=2 ? : values=*off,off* Regards, Thierry |
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