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Old 07-20-2009, 09:29 PM   #1
waffe
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Registered: Sep 2003
Distribution: Debian
Posts: 69

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Arrow reload .asoundrc without logging out and in


Hi,

my Ubuntu setup will be used by multiple people and at different places and some people will want to use HDMI audio and other will wan to use the 1/8 inch audio jack(analog). All of my sound is working except I have to change this line of my .asoundrc to switch to either HDMI or analog.

Code:
HDMI
pcm "hw:1,3"

Analog
pcm "hw:0,0"
So I am looking to set up a script that I can call from a button that will use different .asoundrc files or an .asoundrc file that has a conditional in it that switches the output. How can this be done? Can the .asound file use conditionals like "if" and how can I tell Linux to re-read the updated .asoundrc file.

Thanks,
4dplane

O' by the way, all of this is being run with Fluxbox but I don't think that will make a difference.

Last edited by waffe; 07-20-2009 at 10:38 PM.
 
Old 07-21-2009, 04:32 AM   #2
bathory
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Registered: Jun 2004
Location: Piraeus
Distribution: Slackware
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I'm not good in bash scripting, but you can use "case" in a script like this:
Code:
#!/bin/sh

case $* in

HDMI )
/usr/bin/sed -i 's/pcm \"hw\:0\,0\"/pcm \"hw\:1\,3\"/g' ~/.asoundrc
;;

Analog )
/usr/bin/sed -i 's/pcm "\hw\:1\,3\"/pcm \"hw\:0\,0\"/g' ~/.asoundrc
;;
esac

source ~/.asoundrc
You can use it, like "script.sh HDMI", or "script.sh Analog" to change the pcm line of .asoundrc.
The last command (source) is used when you want to re-read settings from a config file like .asoundrc

Last edited by bathory; 07-21-2009 at 04:35 AM.
 
Old 07-21-2009, 09:30 AM   #3
tredegar
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Registered: May 2003
Location: London, UK
Distribution: Debian "Testing"
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You might like to take a look at this thread, especially post #8

Once you have changed alsa.conf you'll need (as root) to do
Code:
/etc/init.d/alsa-utils restart
This worked for me, when I had a similar situation.
 
  


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