From alsa-devel-owner@alsa.jcu.cz  Mon Oct 12 22:33:36 1998
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Date: Mon, 12 Oct 1998 22:32:38 +0200 (MET DST)
From: Andy Lo A Foe <arloafoe@cs.vu.nl>
To: alsa-devel@jcu.cz
Subject: S3 SonicVibes
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Hi,

I borrowed an S3 SonicVibes card from a friend to test it with ALSA.
Detection is fine, sound is great! But sometimes the card will just
stop responding i.e. no more interrupts. I can open the PCM device, etc.
but writing data to it just blocks.. If this is a known problem I'll wait
for the fix (sorry no time to go hunting for the bug myself right now). If
noone experiences this I can try to produce some proper debugging output. I'm
using the CVS version of alsa-driver (updated this afternoon). The code
I'm testing it with is using small fragments.

AlsaPlayer update:
I almost completely eliminated underrun errors! There were some
subtle locking bugs in the code (where a high priority task was blocking
on a lower priority one). I get latencies in the order of 10ms with the 
SonicVibes! Very interesting stuff.. next alpha maybe layer tonight
(real-time reverb effect is working!)

Okay,
Andy
--
Andy Lo A Foe, arloafoe@cs.vu.nl |  Linux v2.1.115  | PII 233 
http://www.cs.vu.nl/~arloafoe    | GSM: 0622-440695 | Bebox 133
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