Actually,  I just tried the OSS/commercial drivers and after tuning
envy24_nfrags to 8 I'm no longer getting any dropouts.   I was getting
only a very few dropouts with the settings of 16 (default) but compared
to alsa it was nothing.  But not it seems to be rock solid.   Can you
give the demo driver a try and see if the pattern is the same with you?
You can get the demo at www.opensound.com

I also changed the pci latency to 0 in my bios which I think helped a bit
too.  I made sure the card has it's own IRQ as well.   But even after all
that, alsa still has dropouts when with OSS  I don't.  

I also read something on midiman's web site about a asus Cusl2 motherboard
and the promise ATA 100 card that this combo was causing click/pops in
the sound. I have exactly this combo, but I took out the ATA100 card and it
didn't change the behavior so I don't think that was it.  I only have secondary
disks on that card to store my mp3 so nothing really high bandwith there. 
The workaround for windows was to change the bus utilisation from "high" to 
"low" but in linux I didn't find anywhere that setting.  Anyway, this is 
probably unrelated but I thought I'd mention it anyway. 

I'm just running a normal 2.4.18 kernel right now + alsa 0.9beta12

-Christian

On Sat, 16 Mar 2002, Tobiah wrote:

| 
| > 
| > I'm really getting desperate and running out of ideas. 
| > 
| That's pretty much what I have resigned myself to.  I have
| 
| been working with my Delta44 for over a year now, trying
| to get clean operation.  I've used all the tricks with
| kernels, and O$$ and ALSA drivers.  I've tried windows 95,
| 98, and 2000.  Always, the card works pretty well, but when
| it comes to multitracking, the performance is always 99%.
| It kinda works, but that one dropout at the end of a three
| minute track makes me want to chuck the machine out the window.
| 
| 
| I've had two different cards, in three entirely different computers.
| I really wanted this to work, but 99% is the same as 0% when
| serious audio is the focus.
| 
| BTW, the best results were with n-track on win2k using WDM drivers.
| I think that that is going to be useable, but I am always in
| fear of the freakin' dropouts.  I am looking for another card.
| 
| Suggestions on a rock solid performer with ALSA that
| delivers exceptionally clean 24/96k operation?
| 
| Thanks.
| 
| 
| 



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