USB sound

[Basil Chupin]

On 04/10/13 22:48, R Kimber wrote:
> On Thu, 03 Oct 2013 23:49:03 -0400
> Ric Moore wrote:
>
>>> I've been having problems with UBS sound for some time (it used to work
>>> about 6 months ago). I find that any USB sound device that I connect is
>>> not recognised, and is not listed by aplay -l
>> sudo apt-get install pavucontrol
>> Then open it. Under the playback tab you select the device you want to
>> play back through from a drop down selection of all the audio devices
>> your system sees. I switch between my USB headset and my 6.1 sound systm
>> all the time using that. I use the headset to not bother other's
>> sleeping. Or, I can blow the cat out the window with 6.1. pavucontrol
>> SHOULD be installed during the install process, but it's not. Go figure.
>> Ric
> Thanks, but pavucontrol gives:-
>
> Error: unable to connect to pulseaudio: OK
>
> I should explain that in attempting to resolve this issue I have made many
> changes, including disabling pulseaudio.  None of the changes worked.  I
> then purged alsa-base, pulseaudio, and pavucontrol, and then re-installed
> them.  This has made no difference, and pulseaudio remains disabled,
> although I reversed the changes that I made previously, and anyway purging
> should have removed any changed settings.
>
> All the relevant modules seem to be loaded OK, including snd_usb_audio.
>
> - Richard.

I am not sure what you mean by "USB sound", but you would know that 
pulseaudio depends on alsa - ie, it sits on top of alsa so you need to 
configure alsa first before doing anything with pulseaudio.

Install alsamixer and run it (as user) in a terminal; use F6 to select 
your sound card and F5 to see all the available channels which you 
activate/deactivate as required - have some CD or whatever running as 
you are doing this so that you can judge which channels are needed to 
get your sound.

Once you have alsa working then make sure that you have pulseaudio 
installed and running and then install pavucontrol and use it as Ric has 
suggested.

BC

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