[linux-audio-dev] Re: Sblive on LAD (was: SBLive again)

Josh Green jgreen at users.sourceforge.net
Wed May 21 15:02:01 UTC 2003

On Wed, 2003-05-21 at 11:15, Lukas Degener wrote:
> Linium wrote:
> >Hi, 
> >
> >I saw your request about the crackling noise you get with the sblive card.
> >
> >I have such a beast too, and in the past i had problem with full-duplex at 
> >44.1 khz.
> >
> >The Sblive work internally at 48khz and work very well at this samplerate 
> >under Alsa, but at 44.1 khz some noise appeared.
> >May be it is the same problem ? try 48 khz and see if it solves it.
> >
> >Note: i don't know if this issue has been adressed now by the Alsa team, so 
> >may be i am writting for nothing... but who know ? :)
> >
> >Linium
> >
> Just let me say thanks to Linium and others:
> The problem seems to have disapeared after i made jack use 48khz instead 
> of 44.1khz
> I have to do some more testing, but it seems i can now drive my apps in 
> full-duplex without major problems.
> Why the different behaviour of alsa and jack? I guess that was because 
> the app i mainly used for testing (ams) would set the sample rate to 
> 48khz when using alsa and accept the preset rate (44,1khz) when used 
> with jackd. which lead me into the false assumption that there could be 
> something wrong with jack.
> Glad that's solved! :-)
> Lukas

Cool, thats good to know. I wonder if the ALSA folks know this, CC'ing
them just in case they don't. Cheers.
	Josh Green

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