17 Nov
2004
17 Nov
'04
12:24 p.m.
Nick Dowell wrote:
$ aplay -D novation korova.wav
...
ALSA lib pcm_hw.c:325:(snd_pcm_hw_hw_params) SNDRV_PCM_IOCTL_HW_PARAMS
failed: Connection timed out
I guess this error code was generated when the driver tried to set the
sample format, but the device didn't respond in time. In this case
there should be a corresponding error message from the USB controller
driver in the system log; is there?
It may be possible that the device doesn't handle this command because
there is only one sample format/rate (but I'm just guessing here).
Please show the contents of /proc/asound/card0/stream0 and the output
of "lsusb -v" for the XStation.
The same thing happens when i try with 'aplay -D
default'.
But with 'aplay -D "hw:0,0"' the error is:
aplay: set_params:805: Sample format non available
Why should the error be any different? I thought default was the same
as hw:0,0?
"default" is defined as "plug:hw:0,0", i.e., the same as your
"novation" definition.
From
http://www.alsa-project.org/alsa-doc/doc-php/asoundrc.php?module=Generic:
"The keyword default is defined in the ALSA lib api and will
always access hw:0,0"
This sentence is technically correct -- "default" does access hw:0,0
after the conversions are done. :-)
Best regards,
Clemens