Re: [linux-audio-dev] Re: alsa, oss , efficiency?

From: lemmel <lem0mel@email-addr-hidden>
Date: Thu Nov 02 2006 - 19:52:42 EET

Le mercredi 01 novembre 2006 23:20, Paul Davis a écrit :
> you really have not provided us with much information on the nature of
> the problem you are seeing.
Well my question was mainly about what sound system I should use.
> dozens, hundreds, perhaps even thousands of
> us use ALSA and layers of software built on top of ALSA every day to
> play gigabytes of audio, and have not noticed the error you describe.
English is not my native tongue, I am sorry if I gived the feeling to critized
ALSA.
> perhaps you should be a lot more specific about the s/w you are using
> and the error you think you are encountering.
Well, in order to settle the matter, the wav file is available at
http://maleelma.free.fr/lemmel/test.wav.bz2,
and this is my software and hardware configuration :
- amarok 1.4.1-3
- xmms 1.2.10+20060901-2
- alsa 1.0.12-1
- linux kernel 2.6.17.8
- lspci : ALi Corporation High Definition Audio/AC'97 Host Controller (rev
01) [a 939SLI-eSATA2 motherboard, with Realtek ALC 660 5.1 channel CODEC with
HD Audio]
- no asoundrc file

the wav file contains BIP sound, first on one channel, then the other one.
File created with audacity.

> as for time drifts when using JACK, forget about it. JACK-based software
> is essentially locked into the hardware.
Well I work with a Magnetic Resonance Imaging machine (MRI), and the generated
sound must be rather accurate : the software is allowed to have a time
drifting of 1 milli-seconde in sound generation.
I was considerating that small wav files (about 3secondes) pre-loaded, will be
a good choice, what do you think ?
Received on Thu Nov 2 20:15:04 2006

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