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Date: Fri, 24 Apr 2015 17:50:49 +0200
From: Hans Petter Selasky <hps@selasky.org>
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To: "Russell L. Carter" <rcarter@pinyon.org>, freebsd-multimedia@freebsd.org
Subject: Re: uaudio0 -> audacity not recording
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On 04/24/15 16:58, Russell L. Carter wrote:
>
>
> On 04/24/15 03:54, Hans Petter Selasky wrote:
>
>>
>> Could you check or dump:
>>
>> sysctl -a | grep pcm
>
> Sure...
>
> dev.pcm.%parent:
> dev.pcm.0.%desc: USB audio
> dev.pcm.0.%driver: pcm
> dev.pcm.0.%location:
> dev.pcm.0.%pnpinfo:
> dev.pcm.0.%parent: uaudio0
> dev.pcm.0.hwvol_step: 5
> dev.pcm.0.hwvol_mixer: vol
> dev.pcm.0.play.vchans: 4
> dev.pcm.0.play.vchanmode: fixed
> dev.pcm.0.play.vchanrate: 48000
> dev.pcm.0.play.vchanformat: s16le:2.0
> dev.pcm.0.rec.vchans: 1
> dev.pcm.0.rec.vchanmode: fixed
> dev.pcm.0.rec.vchanrate: 48000
> dev.pcm.0.rec.vchanformat: s16le:2.0
> dev.pcm.0.buffersize: 0
> dev.pcm.0.bitperfect: 0
> dev.pcm.0.mixer.vol_0_0.val: -8225
> dev.pcm.0.mixer.vol_0_0.min: -32768
> dev.pcm.0.mixer.vol_0_0.max: 0
> dev.pcm.0.mixer.vol_0_0.desc: USB Audio CODEC
> dev.pcm.0.mixer.vol_0_1.val: -8225
> dev.pcm.0.mixer.vol_0_1.min: -32768
> dev.pcm.0.mixer.vol_0_1.max: 0
> dev.pcm.0.mixer.vol_0_1.desc: USB Audio CODEC
> dev.pcm.0.mixer.mute_1.val: 0
> dev.pcm.0.mixer.mute_1.min: 0
> dev.pcm.0.mixer.mute_1.max: 1
> dev.pcm.0.mixer.mute_1.desc: USB Audio CODEC
> dev.pcm.0.feedback_rate: 0
>
>

Hi,

If you run:

sysctl dev.pcm.0.mixer.vol_0_0.val=-16000
sysctl dev.pcm.0.mixer.vol_0_1.val=-16000

Does it make any difference?

Also try play with:

sysctl dev.pcm.0.mixer.mute_1.val=0
sysctl dev.pcm.0.mixer.mute_1.val=1

--HPS