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thanks for fast and precise answer<br>
editing /lib/modprobe.d/aliases.conf <br>
and changing: <br>
options snd-usb-audio index=-2<br>
to<br>
options snd-usb-audio index=0<br>
make the card number to 0 and works in pd with alsa.<br>
n<br>
<pre class="moz-signature" cols="72"><a class="moz-txt-link-freetext" href="http://www.nimon.org">http://www.nimon.org</a>
</pre>
<div class="moz-cite-prefix">Le 06/12/2016 à 10:24, IOhannes m
zmoelnig a écrit :<br>
</div>
<blockquote cite="mid:29f64060-ba43-3723-ee9c-b2896109dba2@iem.at"
type="cite">
<pre wrap="">On 2016-12-06 10:13, Nicolas Montgermont via Pd-list wrote:
</pre>
<blockquote type="cite">
<pre wrap="">I can't manage to make it work in pd,
it appears in the menu, but when I launch dsp, it shows:
ALSA lib pcm_hw.c:1667:(_snd_pcm_hw_open) Invalid value for card
ALSA input error (snd_pcm_open): No such file or directory
... same for output
what should I do to use it in pd?
</pre>
</blockquote>
<pre wrap="">
iirc, there's a problem if the cards are not in consecuritve order,
starting with 0.
e.g. my devices are
$ cat /proc/asound/cards
0 [DSP ]: H-DSP - Hammerfall DSP
RME Hammerfall HDSP 9652 at 0xf3100000, irq 22
1 [MID ]: HDA-Intel - HDA Intel MID
HDA Intel MID at 0xf3420000 irq 33
2 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xf3000000 irq 17
$
which means i have 3 devices with ids 0,1&2.
if however, you have something like
$ cat /proc/asound/cards
1 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xf3000000 irq 17
$
then you are missing the device #0, and Pd gets into trouble.
a couple of workarounds:
- use jack to talk with the soundcard, so Pd doesn't need to know
- make sure that the card numbers start with 0 (and are consecutive, in
case you want to access a not-first card); this most likely involves
tweaking some kernel module parameters (for the soundcards to be
loaded), and maybe some udev rules.
fgjmasdr
IOhannes
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</blockquote>
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