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SubjectRe: emu10k emits buzzing and crackling
On Fri, 2 Nov 2001, Morgan Collins [Ax0n] wrote:

> > You may want to try the cvs version, but I thought they were pretty close to being in
> > sync. I have the same setup as you(dual Athlon, RH7.2) and I haven't seen any
> > problems as of yet.
> >
> > Steven
> >
> > Benjamin LaHaise wrote:
> >
> >>Hey folks,
> >>
> >>One of the workstations I use really doesn't like the emu10k driver in 2.4.13-ac5.
> >>The box is a dual athlon running rh7.2. Playing mp3s seems to work well, but other
> >>samples from xfce on shutdown and window close result in buzzing and popping noises.
> >> If anyone wants details or patches tested, drop me a note.
> >>
> >>
> -ben
> >>
> >>es1371: version v0.30 time 17:42:30 Nov 1 2001
> >>Creative EMU10K1 PCI Audio Driver, version 0.16, 17:42:24 Nov 1 2001 emu10k1:
> >>EMU10K1 rev 7 model 0x8040 found, IO at 0x2400-0x241f, IRQ 19 ac97_codec: AC97 Audio
> >>codec, id: 0x8384:0x7609 (SigmaTel STAC9721/23) usb.c: registered new driver hub
> >>-
> >>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body
> >>of a message to majordomo@vger.kernel.org
> >>More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the
> >>FAQ at http://www.tux.org/lkml/
> >>
> I've also experianced this with 2.4.13+preempt. As ben said, playing single large files
> works fine, but when playing short files or using esd for short bursts of sound,

With the emu10k1 there is no need to use esd...

> I often
> get popping noises.

The current emu10k1 driver uses a hardware clock to generate periodic
interrupts. These apparently ran at the wrong rate in some Alpha machines.
It's possible that the same problem occur now with more recent i386
machines.

Rui Sousa

>
> I'll give the cvs version a try and report back.
>
>

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