[Alsa-user] 24bit usb audio problem

[Song K. <ki...@di...>]

I bought this usb-audio interface one year ago, I couldn't use
this interface for several problem(only 24bit audio. etc...),
but alsa tells that was working.

I read the manual (
http://www.alsa-project.org/alsa-doc/doc-php/template.php3?company=AudioTrak&card=OPTOPlay&chip=AK4353&module=usb-audio
), then
I followed step.

The interface work fine in Windows, there are no fault in lsusb, dmesg

What is the problem?


---
"modprobe snd-usb-audio.o" was succesfully done.

here is the result of lsmod


snd-seq-oss            22560   0  (unused)
snd-seq-midi-event      3112   0  [snd-seq-oss]
snd-seq                34732   2  [snd-seq-oss snd-seq-midi-event]
snd-pcm-oss            37316   0
snd-mixer-oss          10112   0  [snd-pcm-oss]
snd-usb-audio          33024   0
snd-rawmidi            12128   0  [snd-usb-audio]
snd-seq-device          3712   0  [snd-seq-oss snd-seq snd-rawmidi]
snd-pcm                55552   0  [snd-pcm-oss snd-usb-audio]
snd-timer               9760   0  [snd-seq snd-pcm]
snd                    23592   0  [snd-seq-oss snd-seq-midi-event snd-seq
snd-pcm-oss snd-mixer-oss snd-usb-audio snd-rawmidi snd-seq-device snd-pcm
snd-timer]
soundcore               3556   5  [snd]
sr_mod                 13336   0  (autoclean)
ide-scsi                7680   0
scsi_mod               52748   2  [sr_mod ide-scsi]
ide-cd                 27008   0
cdrom                  27488   0  [sr_mod ide-cd]

---

but

#mpg321 some.mp3   or
 esd& ( by root)

MPEG 1.0 layer III, 160 kbit/s, 44100 Hz joint-stereo
SNDCTL_DSP_SETFMT: Invalid argument
Audio device open for 44.1Khz, stereo, 16bit failed
Trying 44.1Khz, 8bit stereo.
SNDCTL_DSP_SETFMT: Invalid argument
Audio device open for 44.1Khz, stereo, 8bit failed
Trying 48Khz, 16bit stereo.
SNDCTL_DSP_SETFMT: Invalid argument
Audio device open for 44.1Khz, stereo, 8bit failed
Trying 22.05Khz, 8bit stereo.
SNDCTL_DSP_SETFMT: Invalid argument
Audio device open for 22.05Khz, stereo, 8bit failed
Trying 44.1Khz, 16bit mono.
SNDCTL_DSP_SETFMT: Invalid argument
Audio device open for 44.1Khz, mono, 8bit failed
Trying 22.05Khz, 8bit mono.
SNDCTL_DSP_SETFMT: Invalid argument
Audio device open for 22.05Khz, mono, 8bit failed
Trying 11.025Khz, 8bit stereo.
SNDCTL_DSP_SETFMT: Invalid argument
Audio device open for 11.025Khz, stereo, 8bit failed
Trying 11.025Khz, 8bit mono.
SNDCTL_DSP_SETFMT: Invalid argument
Audio device open for 8.192Khz, mono, 8bit failed
Trying 8Khz, 8bit mono.
SNDCTL_DSP_SETFMT: Invalid argument
Sound device inadequate for Esound. Fatal.
Can't find a suitable libao driver. (Is device in use?)
Segmentation fault






what is the problem?