Re: [Plib-users] Onboard Sound Support?

[Curtis L. O. <cu...@me...>]

Iaian Babchuk writes:
> I am also having the same sound problem while running the plib sl
> examples and FlightGear as originally described by David Giraud. My
> onboard sound is on a k7s5a SiS 735 motherboard with a SiS 7012 sound
> chip. Sound is compiled into a linux 2.4.20 kernel with a i810_audio
> driver. Outside of plib (ie. playing CDs and XFCE window manager sound
> module) sound can be heard. Note that I also made sure no other
> processes are accessing /dev/dsp or /dev/audio while running the
> examples or FlightGear. I put a simple debugging statement in
> slScheduler.cxx and found that the bps variable in class slDSP was
> equal to 16 and thus raising the following warning "WARNING:
> slScheduler: Needs a sound card that supports 8 bits per sample.".

I messed around with an onboard audio chip once (forget which one.)
The Linux drivers for it really sucked.  They only supported a small
subset of possible sound samples (i.e. certain fixed sample rates,
etc.)  I spent about 2 hours on it, gave up, disabled the onboard
audio, threw in a sound blaster live, and was done with it.  So, my
best guess is that the drivers you have found for your chipset are
incomplete and probably only support one sampling rate (which is
probably different from the one FlightGear is trying to use.)

Regards,

Curt.
-- 
Curtis Olson   IVLab / HumanFIRST Program       FlightGear Project
Twin Cities    cu...@me...                  cu...@fl...
Minnesota      http://www.menet.umn.edu/~curt   http://www.flightgear.org