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From: Raymond Yau <superquad.vortex2@gmail.com>
To: ALSA Development Mailing List <alsa-devel@alsa-project.org>
Subject: Re: Handling of the DXS controls in the via82xx driver
Date: Thu, 1 Apr 2010 07:00:59 +0800	[thread overview]
Message-ID: <j2o4f3252891003311600g2f5b1579i5b634637f1da5e02@mail.gmail.com> (raw)
In-Reply-To: <4BB0A970.7020600@gmx.de>

2010/3/29 Soeren D. Schulze <soeren.d.schulze@gmx.de>

> Clemens Ladisch wrote:
> >> The bad thing about it is that 31,31 is a really bad setting for my
> >> poorly engineered sound card.  It distorts a lot.
> >
> > If the card cannot handle any loud output, then all outputs from any
> > source must be restricted, so the logical place for lower volume would
> > be the "Master" or "PCM" controls.
>
> The problem is rather that it cannot handle loud *input*.  With loud
> input from digital plus the respective DXS lever on high volume, it
> apparently overdrives at a very early stage in the sound card.  Master
> and PCM do not help anything any more.
>
> The other workaround would probably be using softvol for reducing the
> volume before it enters analog, but lowering the DXS levers is still
> better IMHO.
>
>
> Thank you
>
> Sören
>
>
did you set those per voice volume control to 0dB ?

try to play a sine wave of full amplitude and record using analog loopback
of ac97 codec and audacity to find out whether the sine wave is clipped

  reply	other threads:[~2010-03-31 23:01 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-27 23:04 Handling of the DXS controls in the via82xx driver Soeren D. Schulze
2010-03-29  1:24 ` Raymond Yau
2010-03-29  1:39 ` Raymond Yau
2010-03-29 12:56 ` Clemens Ladisch
2010-03-29 13:21   ` Soeren D. Schulze
2010-03-31 23:00     ` Raymond Yau [this message]
2010-03-31  1:39   ` Raymond Yau

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