Re: Red Hat 9 - OSS High Pitched Sound on PCG-V505BX

On Thu, 2003-08-14 at 13:44, Stephen L Johnson wrote:
> On Thu, 2003-08-14 at 15:10, Jonathan C. Sitte wrote:
> > Jack Coates wrote:
> > > for most chips it doesn't make a difference -- but there is a bug in the
> > > OSS i810 driver that causes this chipmunk sound, and that bug doesn't
> > > exist in the ALSA i810 driver, so there it does make a difference.
> > 
> > I hate it when it does that chipmonk sound.
> > 
> > I do have that i810. Here are the specs:
> > 
> > Vendor: Intel Corp.
> > Model: 82801CA/CAM AC'97 Audio
> > Module: i810_audio
> > 
> > Do not see an easy way to switch to alsa though.
> > 
> > jcsitte
> 
> The problem for molassis or chipmunk sounds from applications assume
> they get the sound driver configuration that asked for. For instance
> asking for a single channel at 16Khz and getting a stereo at 44 KHz.
> It's going to sound wierd.
> 
> Not all sound hardware supports all of the possible modes that the
> driver supports.  The I810 only support stero at 44 Khz.
> 
> The esd and artsd daemons can deal with these type of problems. They can
> munge the data streams so a VoIP app that wants ab 8 bit single channel
> at 8KHz can talk to hardware that only does 16 bit stereo at 44KHz.
> 
> Another thing to watch out for is the CPU clock speed changing like when
> switching to or from battery power. You need to close the sound app and
> restart it so the driver, or daemon, has the proper calabrated bogomips.

that would drive me nuts -- I use autospeedstep and my CPU speed changes
all the time. Using the ALSA driver just makes it work at 44Khz all the
time.
-- 
Jack Coates
Monkeynoodle: A Scientific Venture...