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

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.

-- 
Stephen L Johnson <[email protected]>