linux-kernel - Re: [PATCH] es1968: fix jitter on some maestro cards

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Message-ID: <47F164AB.5040009@keyaccess.nl>
Date:	Tue, 01 Apr 2008 00:24:43 +0200
From:	Rene Herman <rene.herman@...access.nl>
To:	Andreas Mueller <andreas@...pelspeicher.org>
CC:	linux-kernel@...r.kernel.org, MatzeBraun@....de, tiwai@...e.de,
	ALSA devel <alsa-devel@...a-project.org>
Subject: Re: [PATCH] es1968: fix jitter on some maestro cards

On 30-03-08 00:49, Andreas Mueller wrote:

> This patch suppresses jitter on several Maestro cards in stereo mode
> (ALSA of course).
> 
> The patch is also incorporated in the *BSD drivers where I "ported" it from.
> I am barely used to driver-development so please take a look (esp. the channel
> parameters), nevertheless it completely works for me.
> 
> Without this patch most of the stereo audio gets out of sync and really
> distorted (oss-emulation with mplayer at 48000khz worked somehow).
> 
> CCed to those listed in the .c file.

Added the alsa-devel list (and re-attached the patch). My TerraTec DMX (ESS 
Canyon3D, ES1970MS-3D) doesn't need this but doesn't seem to suffer from it 
either. Otherwise no idea about this.

Rene.

View attachment "es1968_jitter.patch" of type "text/plain" (991 bytes)