Re: Hi, does someone use i810 onboard sound ?

["Joël Bourquard" <numlock@freesurf.ch>]

Hi Stas,


On Sun, 2003-10-05 at 12:01, Stas Sergeev wrote:
> IIRC Stunts uses an FM sound in SB mode,
> which is not implemented yet.
> You can set Stunts to MT-32 mode, which
> is implemented and is supported by midid.

You're correct, it is FM sound. Sorry.

> > About a workaround for the stereo issue, I didn't see it as
> > "post-processing". Perhaps a simple option to prevent opening /dev/dsp
> > in mono could be useful
> Prevent and do what? Not opening at all?
> You can just set $_sound=(off) for that.
> To do that properly, dosemu or some
> external software must convert the mono
> sound stream to stereo, and preferrably
> also resample it to 44100. Then your
> problem as well as some other problems
> will disappear.

I meant, to open in stereo while keeping the same sampling rate. Most
newer soundcards are 48000, but they (should) handle sampling rate
conversion in hardware.

> For people with buggy drivers I wrote an
> excellent test-case sound driver which can
> be found here:
> http://www.geocities.com/stssppnn/pcsp.html
> It is intended to be 100% correct :)
> Try it with dosemu and see if the patch
> fixes the problem with that driver.
> If yes - your driver is buggy and the ALSA
> must be attempted instead. Btw, if you
> know your OSS driver is buggy, why don't
> you use ALSA? Is there a support for your
> chip?

I thought my i810 driver was OSS, but it's already ALSA. My mistake.

I've tried your pc speaker driver, and wow it's impressive ! With this
driver the Goblins test was successful, after I did the following:
- applied your patch
- increased DIRECT_WRITE_FREQ to 11025.

If DIRECT_WRITE_FREQ is not changed, the games hangs after ~5 seconds
with plenty of "ERROR: SB: direct write buffer overflowed!" in the
console. I suggest you replace the default value with 11025 (should test
stability more carefully though).

Now for sure, my i810 driver sucks. Do you know if there is:
- an alternative ?  (I'm using kernel 2.4.23)
- an incompatibility between it and DosEMU ?
- a place where I could report the problem to the i810 driver guys ?

Thanks for your help..  your DosEmu rocks !!

Best Regards,
Joël

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