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Re: 2.6.0 + ALSA sound quality



On Fri, Jan 16, 2004 at 11:29:36AM +0100, Bjorn Johansson wrote:

| I've recently compiled a 2.6.0 kernel with ALSA built in.
| But the sound doesn't sound to good, in fact, the sound
| sounds worse than OSS! So how do I fix the problem?
| It's like a clipping sound, the OSS emulation works
| great, though.

I would re-check the hardware options first.  When you use the OSS
modules, what DMA channel and IRQ is used?  What about when you use
ALSA?  

| Is there anyone here on this list which have a working ALSA
| system with great sound(with the 2.6.0 kernel)?

Yes.  I have two systems, one still with 2.4.22 (with ALSA 0.9) the
other with 2.6.0.  The former system has a SB Pro (old 8-bit ISA
card), the latter is a laptop with an ESS Maestro built-in.

| Do I need to patch my current 2.6.0 kernel with something?

No.  At least, not for the sound cards I am using.  The last time I
had problems with sound quality it was the result of the kernel and
hardware not agreeing on an IRQ and/or DMA channel to use.  Basically
the system couldn't get the data to the hardware in time for the sound
to come out smooth and continuous.

HTH,
-D

-- 
If any of you lacks wisdom, he should ask God, who gives generously to
all without finding fault, and it will be given to him.  But when he
asks he must believe and not doubt, because he who doubts is like a wave
of the sea, blown and tossed by the wind.
        James 1:5-6
 
www: http://dman13.dyndns.org/~dman/            jabber: dman@dman13.dyndns.org

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