I'm not sure deviating from the Microsoft behavior is correct. The default is 22khz 8 bit mono unless the hardware doesn't support it. Transgaming is correct.
Another problem is that drivers support different formats in different modes. Because of software emulation in alsa, a driver may appear to support any format but then fail when you try to mmap it because then software conversions can't come into play. This is also a problem with OSS emulation in alsa on this type
of hardware.
Roderick Colenbrander wrote:
Hi,
This is the first of two patches that will fix some problems on soundcards using the i810 audio codec. The main probem with this soundcard is that it only supports a frequency of 48kHz in 16bit stereo mode.
This first patch to dsound queries if the card supports 16bit and if so it uses it, else it uses 8bit. Further it also detects if the card supports stereo or not. The patch was inspired by one from transgaming to rewind but that patch did a bit the opposite (defaulting to 8bit ..).
Roderick Colenbrander
Name: dsounddsound Type: text/x-diff Encoding: 7bit