Arcam rDAC

[seroper]

Hi,

I have a PC running vortexbox server, it's based on Fedora. It has a Lynx AES16 PCI soundcard and a new Arcam rDAC connected by UBS. I have got OSS v4.2 installed and working with the Lynx correctly, I have 4 vortexbox players configured to use the Lynx using mdpX.conf files.

I now have a new Arcam rDAC connected by UBS, I have run ossinfo and it has detected the rDAC as
USB sound device play /dev/oss/usb0c560002-1/pcm0 (device index 17)
I have edited one of the mdp.conf files to use the above device and I get playback, however there are ocational glitches. The rDAC uses asynchronous USB to minimis jitter. Does OSS support this type of DAC? Are there any settings I can use to improve the playback on USB?

Thanks in advance,
Simon

[cesium]

If there's an "altsetting" knob in the USB's mixer (you can see that via 'ossmix' or 'ossxmix'), than maybe changing that would help. Another idea is to try and attach the virtual mixer to the USB ('sudo vmixctl attach -M /dev/oss/oss_usb0/pcm0 /dev/oss_usb0/pcmin0' or something like that).

[seroper]

Thanks for the reply. I ran ossmix -a and there aren't any availiable controls for the UBS DAC. I therefore tried to attach the virtual mixer, as you described. This worked as far as i had it attached, but the sound still glitches occationally. Also it don't work with 24bit files now, I want bit perfect playback of 16 and 254 bit files from 44100Hz to 96000Hz sample rates, depending on the track.

The rDAC works perfectly on XP, but I want to use it with Linux also. I'm sure the linux box can stream the files and playback ok because it does on the Lynx card.

Any other suggestions?

Thanks.

[cesium]

Thanks for the reply. I ran ossmix -a and there aren't any availiable controls for the UBS DAC

I doubt that. Can you paste the output here? Also, output of 'lsusb'?

[seroper]

From lsusb:

Code: Select all

[Audio.localdomain ~]# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0c56:0002 Billion Bright, Ltd
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
[Audio.localdomain ~]#


From ossmix -a: Note the Lynx has a lot of settings, but nothing for the USB DAC.

Code: Select all

[Audio.localdomain ~]# ossmix -a
Selected mixer 0/Lynx AES16 Adapter
Known controls are:
clock.rate <8000|11025|16000|22050|32000|44100|48000|64000|88200|96000|128000|176400|192000|200000> (currently 200000)
clock.ratelock ON|OFF (currently OFF)
clock.dual-wirein ON|OFF (currently OFF)
clock.dual-wireout ON|OFF (currently OFF)
clock.preferred <Internal|External|Header|LStream|Digital_in1|Digital_in2|Digital_in3|Digital_in4> (currently Internal)
freq.l/r_clock <decimal value> (currently 47998) (Read-only)
freq.ext <decimal value> (currently 0) (Read-only)
freq.hdr <decimal value> (currently 0) (Read-only)
freq.lstr <decimal value> (currently 0) (Read-only)
freq.pci <decimal value> (currently 33260252) (Read-only)
freq.di1 <decimal value> (currently 0) (Read-only)
freq.di2 <decimal value> (currently 0) (Read-only)
freq.di3 <decimal value> (currently 0) (Read-only)
freq.di4 <decimal value> (currently 0) (Read-only)
freq.di5 <decimal value> (currently 0) (Read-only)
freq.di6 <decimal value> (currently 0) (Read-only)
freq.di7 <decimal value> (currently 0) (Read-only)
freq.di8 <decimal value> (currently 0) (Read-only)
lock.in1 <decimal value> (currently 0) (Read-only)
lock.in2 <decimal value> (currently 0) (Read-only)
lock.in3 <decimal value> (currently 0) (Read-only)
lock.in4 <decimal value> (currently 0) (Read-only)
lock.in5 <decimal value> (currently 0) (Read-only)
lock.in6 <decimal value> (currently 0) (Read-only)
lock.in7 <decimal value> (currently 0) (Read-only)
lock.in8 <decimal value> (currently 0) (Read-only)
SNDCTL_MIX_READ(value2): Input/output error
srcratio.in5 <decimal value> (currently -1) (Read-only)
SNDCTL_MIX_READ(value2): Input/output error
srcratio.in6 <decimal value> (currently -1) (Read-only)
SNDCTL_MIX_READ(value2): Input/output error
srcratio.in7 <decimal value> (currently -1) (Read-only)
SNDCTL_MIX_READ(value2): Input/output error
srcratio.in8 <decimal value> (currently -1) (Read-only)

Selected mixer 1/Lynx AES16 Record/Play
Known controls are:
record.pcm8.lsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di1L)
record.pcm8.rsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di1R)
record.pcm8.mute.l ON|OFF (currently OFF)
record.pcm8.mute.r ON|OFF (currently OFF)
record.pcm9.lsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di2L)
record.pcm9.rsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di2R)
record.pcm9.mute.l ON|OFF (currently OFF)
record.pcm9.mute.r ON|OFF (currently OFF)
record.pcm10.lsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di3L)
record.pcm10.rsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di3R)
record.pcm10.mute.l ON|OFF (currently OFF)
record.pcm10.mute.r ON|OFF (currently OFF)
record.pcm11.lsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di4L)
record.pcm11.rsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di4R)
record.pcm11.mute.l ON|OFF (currently OFF)
record.pcm11.mute.r ON|OFF (currently OFF)
record.pcm12.lsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di5L)
record.pcm12.rsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di5R)
record.pcm12.mute.l ON|OFF (currently OFF)
record.pcm12.mute.r ON|OFF (currently OFF)
record.pcm13.lsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di6L)
record.pcm13.rsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di6R)
record.pcm13.mute.l ON|OFF (currently OFF)
record.pcm13.mute.r ON|OFF (currently OFF)
record.pcm14.lsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di7L)
record.pcm14.rsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di7R)
record.pcm14.mute.l ON|OFF (currently OFF)
record.pcm14.mute.r ON|OFF (currently OFF)
record.pcm15.lsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di8L)
record.pcm15.rsrc <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R> (currently Di8R)
record.pcm15.mute.l ON|OFF (currently OFF)
record.pcm15.mute.r ON|OFF (currently OFF)

Selected mixer 2/Lynx AES16 Outputs
Known controls are:
output.a1.-.vol <monovol> (currently 114)
output.a1.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P1L)
output.a1.mutea ON|OFF (currently OFF)
output.a1.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di1L)
output.a1.muteb ON|OFF (currently ON)
output.a2.-.vol <monovol> (currently 114)
output.a2.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P1R)
output.a2.mutea ON|OFF (currently OFF)
output.a2.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di1R)
output.a2.muteb ON|OFF (currently ON)
output.a3.-.vol <monovol> (currently 114)
output.a3.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P2L)
output.a3.mutea ON|OFF (currently OFF)
output.a3.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di2L)
output.a3.muteb ON|OFF (currently ON)
output.a4.-.vol <monovol> (currently 114)
output.a4.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P2R)
output.a4.mutea ON|OFF (currently OFF)
output.a4.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di2R)
output.a4.muteb ON|OFF (currently ON)
output.a5.-.vol <monovol> (currently 114)
output.a5.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P3L)
output.a5.mutea ON|OFF (currently OFF)
output.a5.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di3L)
output.a5.muteb ON|OFF (currently ON)
output.a6.-.vol <monovol> (currently 114)
output.a6.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P3R)
output.a6.mutea ON|OFF (currently OFF)
output.a6.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di3R)
output.a6.muteb ON|OFF (currently ON)
output.a7.-.vol <monovol> (currently 114)
output.a7.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P4L)
output.a7.mutea ON|OFF (currently OFF)
output.a7.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di4L)
output.a7.muteb ON|OFF (currently ON)
output.a8.-.vol <monovol> (currently 114)
output.a8.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P4R)
output.a8.mutea ON|OFF (currently OFF)
output.a8.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di4R)
output.a8.muteb ON|OFF (currently ON)
output.a9.-.vol <monovol> (currently 114)
output.a9.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P5L)
output.a9.mutea ON|OFF (currently OFF)
output.a9.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di5L)
output.a9.muteb ON|OFF (currently ON)
output.a10.-.vol <monovol> (currently 114)
output.a10.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P5R)
output.a10.mutea ON|OFF (currently OFF)
output.a10.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di5R)
output.a10.muteb ON|OFF (currently ON)
output.a11.-.vol <monovol> (currently 114)
output.a11.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P6L)
output.a11.mutea ON|OFF (currently OFF)
output.a11.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di6L)
output.a11.muteb ON|OFF (currently ON)
output.a12.-.vol <monovol> (currently 114)
output.a12.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P6R)
output.a12.mutea ON|OFF (currently OFF)
output.a12.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di6R)
output.a12.muteb ON|OFF (currently ON)
output.a13.-.vol <monovol> (currently 114)
output.a13.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P7L)
output.a13.mutea ON|OFF (currently OFF)
output.a13.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di7L)
output.a13.muteb ON|OFF (currently ON)
output.a14.-.vol <monovol> (currently 114)
output.a14.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P7R)
output.a14.mutea ON|OFF (currently OFF)
output.a14.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di7R)
output.a14.muteb ON|OFF (currently ON)
output.a15.-.vol <monovol> (currently 114)
output.a15.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P8L)
output.a15.mutea ON|OFF (currently OFF)
output.a15.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di8L)
output.a15.muteb ON|OFF (currently ON)
output.a16.-.vol <monovol> (currently 114)
output.a16.a <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently P8R)
output.a16.mutea ON|OFF (currently OFF)
output.a16.b <Di1L|Di1R|Di2L|Di2R|Di3L|Di3R|Di4L|Di4R|Di5L|Di5R|Di6L|Di6R|Di7L|Di7R|Di8L|Di8R|P1L|P1R|P2L|P2R|P3L|P3R|P4L|P4R|P5L|P5R|P6L|P6R|P7L|P7R|P8L|P8R> (currently Di8R)
output.a16.muteb ON|OFF (currently ON)

Selected mixer 3/USB sound device
Known controls are:
[Audio.localdomain ~]#

Thanks.

[cesium]

Didn't know it was possible... Can you add "detect_trace=1" line to /usr/lib/oss/conf/osscore.conf and "usb_trace=3" to /usr/lib/oss/conf/oss_usb.conf? Then restart OSS. Maybe the output would be helpful...