On 6/02/2015 1:29 AM, Tino Mettler wrote:
On Thu, 2015-02-05 at 14:56 +0100, Takashi Iwai wrote:
looking at the code diff between 1.0.15 and 1.0.18, there is no
significant changes in hdspm.c, and most of them are just typo fixes
and core-side API cleanup that is irrelevant with HDSPM
functionality.
Hi,
as Bruce seems to have the same problem as I do, I can state that at
least Debian Lenny which uses 1.0.16 worked out of the box on the same
hardware and test sample.
Hi Tino,
That's interesting. Great to see some confirmation at last and that I'm
not suffering some sort of weird 3 year long delusion :)
Note I think I have *2 problems*. They may or may not be related !
1/ Somewhere between 1.0.15 and 1.0.18 aplay gave distorted/jerky/pulsed
output playing a wav file on the RME. Callbacks stopped working to my
own alsa application after approx 1s of playback. It could well be
between 1.0.16 and 1.0.18. *Or*, your setup/somehow/ doesn't suffer 1/,
but only 2/, and the problem 1/ came for me between 15 & 16 :) Less
likely, but still possible.
2/ On a very recently installed system with alsa 1.0.28 (alsa driver now
part of kernel though?), the playback with aplay speeds up, and I get
that weird 5 channel output thing happening. Callbacks to my alsa app
cease after a very short (few ms) burst of audio).
If you use "aplay --disable-resample", and attempt to play a 96k stereo
wav file, it won't play and claims the only rate possible is 176.4k,
which I don't /think /this particular card even supports ! (later RME
cards did come with quad speed).
I can't tell you if the speedup is due to the 2 channels being spread
over 5, and /using up/ the samples faster, or if it's a clocking problem.
I used this image:
http://cdimage.debian.org/cdimage/archive/5.0.10-live/amd64/iso-cd/debian-live-5010-amd64-standard.iso
After boot, I tried this:
$ sudo apt-get install alsa-base alsa-utils
$ mount /dev/sdc /mnt # to mount the USB stick with the test sample
$ aplay /mnt/test_stereo.wav
Then I get working stereo playback with an AES32 card over AES3.
I might also try other Debian versions (squeeze, wheezy).
Regards,
Tino
--
Cheers,
Bruce
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