[Mplayer-users] Audio problem: it has 'wheezing' artifacts

Alex Kanavin ak at cave.hop.stu.neva.ru
Fri Jun 8 11:01:46 CEST 2001

On Wed, 6 Jun 2001, Nick Kurshev wrote:

> I have almost same configuration:
> S3VirgeDX-PCI + SB16PnP + Duron-750 + 256RAM
> I use mplayer with SDL output: -vo sdl. And it works for me in real-time
> with 600x400 (4:3) 48000 DivX-MPEG4 streams.

Well, maybe your souncard uses 16bit DMA channel that allows for crisp
sound, while mine only has 8bit DMA. Or you're using a smaller
resolution/refresh rate than me. Or your motherboard is able to allocate
necessary bus bandwidth to both SB16 and Virge, while mine isn't. I don't

> A-V resync problem was in mplayer but it seems that Arpi've fix it.
> At least it don't occur for me now (I use mplayer from CVS).
> But when I try to run any windoze player under my NT4.0 then
> they can't play me in realtime even 320x200 stream with sound.

Weird. When I did have NT 4.0 on my machine (not anymore) I was able to
play everything. Microsoft did not yet "innovate" asf/wmv crap back then,
but mpeg-1 were played fine.

> But if you look at /usr/src/linux/Documentation/sound/ then you can
> find there that 16-bit DMA channel can be only >= 5 but not 3
> (Althrough 3 is present there in one sample).

I know. Time to buy better hardware, it seems.


Homepage: http://www.sensi.org/~ak/

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