Re: [ecasound] weird delay in real time processing

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Subject: Re: [ecasound] weird delay in real time processing
From: S. Massy (theanaloguekid@tak.net.dhis.org)
Date: Sun May 14 2000 - 02:01:59 EEST

On Thu, 11 May 2000, Kai Vehmanen wrote:

> On Thu, 11 May 2000, S. Massy wrote:
>
> > guitar + amp simulator + SBLive (MIC in) + processor (ecasound) +
> > SBLive speaker out + speakers (I intend to eventually output to a file
> [...]
> > from that time. If I close ecasound and restart it, it does exactly the
> > same (starts with little or no delay the becomes laggy). I lowered the
> > buffer size down to 32 and run ecasound with the "-r" option but it
>
> >From the list archives...:
>
> --cut--
> Date: Mon, 06 Mar 2000 21:02:02 -0500
> From: Remco Poelstra <rjpoelstra@home.nl>
> Reply-To: ecasound-list@wakkanet.fi
> To: ecasound-list@wakkanet.fi
> Subject: [ecasound] Delay with SB Live
>
> It's quite a long time ago, that I mailed about a delay in ecasound,
> even with -b:64.
> I was suggested to try some other realtime software, to check if it was
> ecasound or the OSS sounddriver.
> Finally, after a lot of troubles, I've installed the alsa driver.
> Now ecasound gives almost no delay with -b:128.
> I hope this will be usefull to users of the SB Live card, which also
> experiences delay problems.
> --cut--
>
> > I'm using alsa's emu10k1 driver. I tried to use native alsa devices
> > with ecasound but got a very poor sound along with underrun warnings
>
> Hmm, what version of ALSA?

I'm using the Latest "stable" release, 0.5.7 that is. I am using OSS
emulation when I get this problem, I believe that the key question is:
Why do I get underrun reports when using the NATIVE alsa devices?

>
> --
> 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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