Hi,
I've been trying out the novation xstation usb audio interface with
alsa 1.0.3, using the snd-usb-audio driver.
The first problem I encountered was to do with audio sample formats:
the hardware only supports 24 bit whereas most computer audio is 16
bit. So I tried to fix that with a .asoundrc:
pcm.novation {
type plug
slave {
pcm "hw:0,0"
format S24_3LE
}
}
something's still not quite right, however:
$ aplay -D novation korova.wav
Playing WAVE 'korova.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
Stereo
ALSA lib pcm_hw.c:325:(snd_pcm_hw_hw_params) SNDRV_PCM_IOCTL_HW_PARAMS
failed: Connection timed out
aplay: set_params:840: Unable to install hw params:
ACCESS: RRW_INTERLEAVED
FORMAT: S16_LE
....
Any ideas what's wrong here?
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?
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"
Nick
On 16 Nov 2004, at 15:30, Eric Dantan Rzewnicki wrote:
> Nick Dowell wrote:
>> Hi,
>> I noticed there has been some discussion as to whether novation usb
>> midi and/or audio products will work with linux:
>> http://www.music.columbia.edu/pipermail/linux-audio-user/2003-August/
>> 005765.html
>> I can tell you that the audio side of all out usb products are usb
>> class compliant, so they should work with the usb audio class
>> drivers. If they don't, please let me know.
>> The MIDI communication is not class compliant. It is a very simple
>> protocol though, and should be easy to implement. If anyone wants
>> information to write one we'd be more than happy to give it.
>> Thanks.
>> Nick Dowell
>> Software Team Leader
>> Focusrite Audio Engineering / Novation DMS
>
> That was probably me. I bought a Remote 25 around that time. I'm only
> using the midi interface. But, I am very interested in being able to
> use it via USB. It would be great to be able to get firmware updates
> and to save templates to my PC.
>
> -Eric Rz.
>
