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

David dplist at free.fr
Thu Nov 2 20:06:18 UTC 2006

On Thu, 02 Nov 2006 18:52:42 +0100
lemmel <lem0mel at gmail.com> wrote:

> > 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           
> - 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.

Have you tried playing your file with the simple aplay command ?

$ aplay test.wav

It works fine here.

> > 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 ?

If you can do without the on-the-fly generation of the sound clips, it
might be easier to have them preloaded, yes.



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