Subject: Re: [ecasound] weird delay in real time processing
From: S. Massy (theanaloguekid@tak.net.dhis.org)
Date: Thu Jun 01 2000 - 00:53:51 EEST
Hey all,
It's been like two weeks I'm trying to track down where the problem
can be. Some stuff I did appeared to help, latest patches to ALSA
0.5.7, slightly bigger buffersize, etc. ALSA native devices are still
unusable, overly poor sound quality. I have to fall back on OSS
emulation which has much more minor problems, or so I thought, but
whenever I record to wave, which is my primary intent, the sound
quality drops again. :( It'd be nice if someone could give me an
advice on what the best chainsetup to do it could be, here's what I use:
------chainsetup file------
-b:128 -sr:48000 -z:db -n:command-line-setup -r
-a:file,real -f:s16_le,2,48000 -i:/dev/dsp
-a:file -f:s16_le,2,48000 -o:/tmp/test.wav
-a:real -f:s16_le,2,48000 -o:/dev/dsp
-a:all
------END------
In addition to that I installed the driver for my good ol'd OPTI931
ISA card so that I could use the SBLive for input and OPTI for
output. I used exactly the same chainsetup for the test with only the
output device changed to "/dev/dsp1". All is alright except that every
5 seconds or so there's a temporary loss of sound which carries over in the
recording. Could it be an IO problem? I checked out for IRQ conflicts
but couldn't find any.
Any advice, suggestion or comment would be greatly appreciated,
S. Massy
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This archive was generated by hypermail 2b28 : Tue Jun 20 2000 - 07:45:05 EEST