Takashi Iwai wrote: > > actually the endpoints of the first two pcm streams are identical. > is the sound only mono?
Yes it *was* just through output 2 or 4 on the card. > on the description, it's defined as stereo streams. > so i guess quattro has two stereo streams, corresponding #0 (or #1) > and #2. > it seems that the stream #0 has only 16bit 44.1kHz at most, while the > stream #1 supports 16/24bit 48kHz (although 24bit-3bytes format is not > supported on alsa yet). > This card is supposed to be 24bit/96Khz. In windows it works like this: 4 i/o channels(2 in, 2 out) at 16bit/48Khz or less 3 i/o channels(2 in, 1 out or 1 in, 2 out) at 24bit/48Khz or less 1 channel at 24bit/96Khz I understand why the 24 bit is not being registered, is that also the probable reason why 96Khz is not being found? > > i've tested usb mic from Labtec, and it works. > so the problem is specific to the hardware, or multi-channels... > I just remembered that my mouse is a usb mouse too so that is not unexpected. > > anyway, could you try the attached patch? > Excellent work. That has enabled stereo playback in hw:2,0 hw:2,1 and hw:2,2. I am unsure about a couple of things though. hw:2,0 and hw 2,1 seem to be doing the same thing. #dmesg --- usb.c: registered new driver snd-usb-audio ALSA usbaudio.c:1833: adding an output interface 3:0:1 ALSA usbaudio.c:1827: adding an input interface 3:0:2 devfs_register(unknown): could not append to parent, err: -17 devfs_register(unknown): could not append to parent, err: -17 devfs_register(unknown): could not append to parent, err: -17 ALSA usbaudio.c:1833: adding an output interface 3:3:4 ALSA usbaudio.c:1827: adding an input interface 3:3:5 ALSA usbaudio.c:1459: 3:4:1 : non-supported sample bit 1 in 3 bytes ALSA usbaudio.c:1459: 3:4:3 : non-supported sample bit 1 in 3 bytes ALSA usbaudio.c:1459: 3:5:1 : non-supported sample bit 1 in 3 bytes ALSA usbaudio.c:1459: 3:5:3 : non-supported sample bit 1 in 3 bytes devfs_register(unknown): could not append to parent, err: -17 ALSA usbaudio.c:1833: adding an output interface 3:6:7 ALSA usbaudio.c:1827: adding an input interface 3:6:8 ALSA usbaudio.c:1459: 3:7:1 : non-supported sample bit 1 in 3 bytes ALSA usbaudio.c:1459: 3:7:3 : non-supported sample bit 1 in 3 bytes ALSA usbaudio.c:1459: 3:8:1 : non-supported sample bit 1 in 3 bytes ALSA usbaudio.c:1459: 3:8:3 : non-supported sample bit 1 in 3 bytes --- -- Patrick Shirkey - Boost Hardware Ltd. For the discerning hardware connoisseur Http://www.boosthardware.com Http://www.boosthardware.com/LAU/guide/ ======================================== _______________________________________________________________ Don't miss the 2002 Sprint PCS Application Developer's Conference August 25-28 in Las Vegas - http://devcon.sprintpcs.com/adp/index.cfm?source=osdntextlink _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
