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Date:      Thu, 18 Dec 2003 15:39:37 -0600
From:      Peter Schultz <pmes@bis.midco.net>
To:        freebsd-current@freebsd.org
Subject:   Re: audio lag in 5.2-Beta (card emu10k1)
Message-ID:  <3FE21E99.1010803@bis.midco.net>
In-Reply-To: <20031218051221.GC2107@opiate.soulwax.net>
References:  <20031212104433.GA803@galgenberg.net> <1071237706.970.41.camel@localhost> <20031212165822.GC48271@opiate.soulwax.net> <brct7i$1b6$1@sea.gmane.org> <20031212190956.GA83087@opiate.soulwax.net> <20031217224800.GB41308@xor.obsecurity.org> <20031218031512.GA628@opiate.soulwax.net> <20031218034220.GA2107@opiate.soulwax.net> <20031218035143.GB2107@opiate.soulwax.net> <20031218044752.GF85297@cnd.mcgill.ca> <20031218051221.GC2107@opiate.soulwax.net>

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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...



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