Subject: Re: [ecasound] weird delay in real time processing
From: S. Massy (theanaloguekid@tak.net.dhis.org)
Date: Thu Jun 01 2000 - 23:42:38 EEST
On Thu, 01 Jun 2000, Kai Vehmanen wrote:
> On Wed, 31 May 2000, S. Massy wrote:
>
> > 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
>
> Have you tried the real OSS drivers?
Yes, the result is much worse than what I get with ALSA...
>
> > 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:
>
> Unfortunately there isn't much you can do on ecasound's side. If
> "ecasound -i somefile.wav -o /dev/dsp" doesn't work, then there ain't
> much you can do. Either your soundcard drivers or the hardware itself
> is not working correctly. With more complex setups, ecasound can cause
> problems, but it definitely should work with the above setup.
But that's my point, and why I'm posting to THIS list in particular: I
have no problem to record or play anything with either OSS or ALSA
programs, it's when I use ecasound for realtime playback and
recording that the problems show up. :(
>
> Few pointers:
> - what apps do work (especially non-ALSA apps)?
> - have you double-checked your irq and dma settings
> (and possibly tried different configurations)?
> - have you tried older ALSA drivers+
Yeah, I guess that's what I'm up to now, thanks :)
S. Massy
>
> --
> Kai Vehmanen <k@eca.cx> ---------------- CS, University of Turku .
> . audio software for linux .. http://www.eca.cx .
> . armchair-tunes mp3/wav/ra . http://www.wakkanet.fi/sculpscape .
>
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