From: "Alexander E. Patrakov" <patrakov@gmail.com>
To: alsa-devel@alsa-project.org
Subject: S16_LE + softvol = bad
Date: Thu, 17 Jan 2008 18:40:27 +0500 [thread overview]
Message-ID: <fmnlt1$g5m$1@ger.gmane.org> (raw)
Hello developers,
some cards (most notably, Intel HD audio) have the PCM control as softvol, and
default to S16_LE as a format for dmix. Since softvol is configured to attenuate
signal, and not many people set this control to 100% (especially those who have
no other volume controls), this effectively leaves less than 16 bits per sample.
The card can surely produce sound of better quality in most cases, if one
changes defaults.pcm.dmix.format in ~/.asoundrc. However, one should now search
a lot of forums in order to know about this setting. Not everyone does this, and
not everyone is even able to diagnose the "noisy sound in Linux" problem
properly as "too few bits per sample in the default configuration". A much
better situation would be if ALSA defaulted to good quality (i.e.: S24_LE or
S32_LE on all cards that require softvol and support this sample format). Could
you please change the files in /usr/share/alsa/cards accordingly?
--
Alexander E. Patrakov
next reply other threads:[~2008-01-17 13:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-17 13:40 Alexander E. Patrakov [this message]
2008-01-17 14:00 ` S16_LE + softvol = bad Clemens Ladisch
2008-01-17 14:11 ` Takashi Iwai
2008-01-17 14:23 ` Takashi Iwai
2008-01-17 15:01 ` Alexander E. Patrakov
2008-01-18 12:46 ` Takashi Iwai
2008-01-23 11:21 ` Alexander E. Patrakov
2008-01-23 11:31 ` Takashi Iwai
[not found] ` <c072ca310801170612p7d06813ve5269dd82afb6619@mail.gmail.com>
2008-01-17 14:14 ` Alexander E. Patrakov
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