On 04/03/2014 04:11 AM, julien@xxxxxxxxxxxx wrote: > On 04/02/2014 04:01 AM, Clemens Ladisch wrote: >> What are the contents of /proc/asound/card/*/stream0 before and after >> this patch, for aplay and xbmc? > > It's essentially unchanged, before and after the patch, with aplay(*) > and xbmc, except for 'momentary freq' which varies of course, but stays > in the neighbourhood of 192k > > TEAC TEAC USB AUDIO DEVICE at usb-0000:00:1d.0-1.4, high speed : USB Audio That's a device with IDs 0644:8038, correct? > Playback: > Status: Running > Interface = 3 Interface 3 refers to ... > Altset = 2 > Packet Size = 156 > Momentary freq = 183992 Hz (0x16.ffc0) > Feedback Format = 16.16 > Interface 3 > Altset 1 > Format: S16_LE ... 16bit, so things don't work for you in 192k/16bit, right? I just tried again with one of my UAC2 implementations that supports 192KHz, and I can't seem to reproduce it. Just for the sake of comparison, could you try playing the following file with aplay? http://zonque.org/sine-192khz.wav (~22 MB) I get stable sound output with aplay -Dhw:xxx --buffer-size=256 Music/sine-192khz.wav I'm getting XRUNs and crackles with smaller buffer sizes such as 128. How does your device behave here? > [*]: I'd like to take back the comment I made in an earlier email > claiming that only xbmc without that patch would play 24/192 correctly. > As a matter of fact, aplay works fine without the patch, and fails the > same way with it, kind of a good news I guess. In addition to more > recent versions of xbmc, the one command line utility that never plays > back 24/192 correctly, with our without the patch is 'play' from the sox > package. I think we're facing two different issues here, as Andrea reported problems with kernel 3.11, while the patch in question made it for 3.12. Andrea, could you also try to play the file I posted above? I'd like to know whether the problem is related to 16/24 bit, 192KHz, the kernel version or a combination of all of those. I'm confused :) Daniel ------------------------------------------------------------------------------ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
