Re: [Alsa-user] Usb audio card CM6206 - noise while recording audio

[Anton K. <ant...@gm...>]

Clemens, thanks for fast responce.

Already mute all input beside line in but noise is still present.

Tested with various ports and hubs - the same sh.t.

The only one thing helps - cable with noise reduction.

I just want to figure out - is it hardware issue, or software?

On Tue, Feb 21, 2012 at 4:00 PM, Clemens Ladisch
<cla...@go...> wrote:
> Anton Komarov wrote:
>> I am trying to record audio from this card. Arecord works great but
>> there is one small problem.
>>
>> When i am starting arecord low noise appears on the background.
>
> Of the input or of the output?
>
> Anyway, try disabling mixer controls for any unused inputs.  If the
> noise is caused by electrical noise on the USB power line, try with or
> without a hub, or at a different USB port.
>
> There's nothing that software can do about this.
>
>
> Regards,
> Clemens