[PD] timing/sound problems

Miller Puckette mpuckett at man104-1.ucsd.edu
Thu Mar 21 21:25:09 CET 2002

Hi again,

Actually, I "had no problems" until I noticed that sound input wasn't working.
So I think Pd is outputting sound OK over i810 using OSS, but I've never
seen it manage full duplex.

With 0.34.4, running full duplex (input+output) over i810 unfailingly crashes
my machine.  I think therefore that the OSS driver isn't stable yet.  This is
very odd, considering that probably half of all P3s and Celeron motherboards
have i810 audio!!!

On a related matter I'm finding plenty of things to change in the OSS audio
support in Pd; I think I introduced several problems trying to merge in
Iohannes's multi-device extension.  If I can get this to appear to run more
robustly I'll put out a new linux test release tonight...


On Thu, Mar 21, 2002 at 07:27:18PM +0100, t.ralf wrote:
> Miller Puckette wrote:
> > Hi x,
> > 
> > I just tried this, using my 2.4.7-10 kernel (from RH 7.1 I think.)  No
> > problems, except that "pd -nodac" gave a wierd error I'll look for later.
> > So I'm not sure what's happening here...!  I especially don't see why
> > it would fail if "test4" succeeded...
> i just tried a work-around using alsa drivers with my intel 810 soundchip.
> metro timing etc. now seems to be about 100 times too slow! (whereas 
> with oss it was about 100 times too fast and i had no audio).
> i experienced this with test4 and test11. (additionally both times i got 
> some nasty clicks)
> strange, since test4 with oss just works fine.
> /flar.t

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