Re: audio lag in 5.2-Beta (card emu10k1)

From: Peter Schultz <pmes_at_bis.midco.net>
Date: Thu, 18 Dec 2003 15:39:37 -0600
Munish Chopra wrote:
> On 2003-12-17 23:47 +0000, Mathew Kanner wrote:
> 
>>On Dec 17, Munish Chopra wrote:
>>
>>>Embarrassingly enough another reply to myself, but I didn't think I'd
>>>find it this quickly. Reverting to revision 1.88 of channel.c fixed
>>>things right up (also 1.20 of buffer.c and 1.7 of buffer.h). No more
>>>lag.
>>>
>>>Revision 1.89 of channel.c attempted to make really short sounds
>>>actually play. Looks like buffer issues. 
>>
>>	Munish,
>>	Does this only fix the amount of time it takes to seek in
>>mplayer or xmms, or to start a track?
>>	--Mat
> 
> 
> Yes, reverting fixes seek/startup time.
> 
> If you're concerned about the popping noises, I switched soundcards to
> an old SB PCI128 I had lying around (some form of Ensoniq chipset), and
> I don't seem to have them anymore. I had several identical SB16's
> around, every single one of them had clearly audible popping
> noises.
> 
> Your patch in kern/59208 *did* seem to lessen the popping noises on the
> SB16 cards significantly, though it didn't remove them completely.
> 

Is there anything more one can do to help narrow this problem down? 
I've never tried profiling before, would it be helpful in this situation?

Pete...
Received on Thu Dec 18 2003 - 12:39:40 UTC

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