[linux-audio-user] Re: hdsp pcmcia issues, again...Someone please explain this phenomenon?!!

[cdr]

On Thu Mar 16, 2006 at 09:46:03PM -0500, Lee Revell wrote:
> On Thu, 2006-03-16 at 15:18 +1100, we are wrote:
> > anyway, i tried running
> > two intances of PD one with the IntelAC'97 (intel0x8) onboard card and
> > the other instance of PD with the hammerfall hardware. This was done
> > though ALSA and not JACK btw...
> > the really weird thing was that the sine tone played perfectally
> > through the multiface! whats up with that?!!
> > however, i have noticed(and this is the main reason fro getting onto
> > the HDSP) that the sine tone that the intel0x8 card plays is full of
> > clicks and DIO errors from pd. when i get the tone out of the
> > multiface using this technique, it is the exact same quality tone
> > clicks and all. 
> 
> This makes no sense.  First you say the sine tone played perfectly, then
> you say it was full of clicks.

if i read it correctly, he claimed the HDSP was also running off the intel8x0's clock..

my suggests: get the card working clickfree on native ALSA, then native JACK (this means an app besides PD). you might need to try ingo's kernel-branch, play around with buffersizes and samplerates, if you are using "nvidia" or "fglrx" try "nv" or "radeon", renice your X server to 19, try booting with noacpi or noapic, and cat /proc/interrupts to see if sound is sharing an IRQ with something else like video..

if you still cant figure it out, mail it to paul :)



> 
> So are you saying:
> 
> PD + ALSA + intel8x0 = clicks
> PD + ALSA + hdsp = clicks
> PD + JACK + hdsp = distortion
> 
> ?