19 Jul
2003
19 Jul
'03
7:41 p.m.
On Fri, 2003-07-18 at 23:48, Overcast, Isaac wrote:
int numChannels = 1 ;
ioctl( deviceHandle, SNDCTL_DSP_CHANNELS, &numChannels )
This call doesn't fail, but when it returns
'numChannels' == 2. Portaudio
detects this and promptly dies.
Now, i just can't figure out if the problem is the onboard sound device is
just so crappy that it doesn't bother to support mono, or if there is some
wierd kernel module i can build that will fix this issue.
Either the driver nor hardware supports 1 channel mode or the driver is
broken. It should return the actual number of channels set. For example:
2002/07/18 20:41:12 Request /dev/dsp9: ch 8 fs 96000 fmt 1000h
2002/07/18 20:41:12 Open /dev/dsp9: ch 8 fs 96000 fmt 1000h frag 4096
(4096) bytes
2003/01/18 02:04:34 Request /dev/dsp9: ch 2 fs 44100 fmt 1000h
2003/01/18 02:04:34 Open /dev/dsp9: ch 2 fs 44100 fmt 1000h frag 1024
(4096) bytes
--
Jussi Laako <jussi.laako(a)pp.inet.fi>