[PD] selecting the correct alsa soundcard via commandline ...
Derek Holzer
derek at umatic.nl
Fri Jun 12 02:18:07 CEST 2009
From same page:
% cat /usr/bin/asoundrc
#!/bin/bash
# asoundrc v0.1.0 20090101 markc at renta.net GPLv3
# asoundrc v0.2.0 20090320 quatro_por_quatro at yahoo.es GPLv3
#
# A simple script to create a particular default audio device regardless
# of what cards are loaded or in what order. It could be used anytime or
# placed in a ~/.bashrc script for a persistent setup every login.
#
# Usage: asoundrc [DEFAULT_CARD] > ~/.asoundrc
# use the first parameter as the card name, or else
# look for the sound card, discarding those that are only microphones
# when there are multiple cards, use the first one
if default_card="${1:-$(cat "$(for f in $(ls -1
/proc/asound/card[0-9]*/{midi,codec}* 2>/dev/null); do echo "${f%/*}";
done \
| sed -e '\|^[\[:blank:]\]$|d' -e 'q')/id" 2>/dev/null)}"; then
echo "Using sound card: ${default_card}" >&2
cat /proc/asound/card[0-9]*/id | \
gawk --assign default_card="${default_card}" \
'{print "pcm."$1" { type hw; card "$1"; }\nctl."$1" { type hw; card
"$1"; }" }
END {print "pcm.!default pcm."default_card"\nctl.!default
ctl."default_card}'
else
echo "Warning: No sound cards found." >&2
fi
Derek Holzer wrote:
> It's been a while since I screwed around with this stuff, but I believe
> that an .asoundrc file in your home directory might be what you need:
>
> http://alsa.opensrc.org/index.php/.asoundrc
>
> best,
> D.
>
> danomatika wrote:
>>
>> Does anyone know of an easy way to get the correct audiodev # for a
>> specific soundcard? I am using an embedded environment and I need to
>> start pd with the correct device in a situation where different
>> devices may/may not be used. In this case, the audiodev # may change.
>
>
--
::: derek holzer ::: http://blog.myspace.com/macumbista :::
http://www.vimeo.com/macumbista :::
---Oblique Strategy # 21:
"Be less critical"
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