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proc

Member

From: Italy

Registered: 2006-11-27

Posts: 71

asound.conf add virtual control / rename a contol channel

Hi,

short version:
how can I add a virtual control/channel (don't know which is the correct term)  named X to alsa such that X is a copy of PCM?
In alternative: is it possible to rename PCM to X?

I have scripts and configurations shared between different PCs that assume I have a Master control, but on my Xonar U3 I only have PCM.

Thanks,
Massimiliano

brebs

Member

Registered: 2007-04-03

Posts: 3,742

Re: asound.conf add virtual control / rename a contol channel

$ amixer | grep  Master
Simple mixer control 'Master',0

Just do a check for that, in your scripts. E.g.:

amixer | grep -q "'Master'" && echo y

Last edited by brebs (2012-01-10 21:54:54)

proc

Member

From: Italy

Registered: 2006-11-27

Posts: 71

Re: asound.conf add virtual control / rename a contol channel

Thanks bresbs... the problem is I would have to change other configurations too e.g. mplayer
I would prefer to tune alsa to have a consistent setup across different PCs (my settings and scripts are under version control and shared between 8 PCs), if this is not possible I'll definitely follow your advice.

brebs

Member

Registered: 2007-04-03

Posts: 3,742

Re: asound.conf add virtual control / rename a contol channel

I'm not sure whether all cards are meant to have a "Master" - you could ask in #alsa on IRC.

masutu

Member

Registered: 2010-01-30

Posts: 40

Re: asound.conf add virtual control / rename a contol channel

I think the softvol plugin is exactly what you are looking for. Have a look at http://alsa.opensrc.org/Softvol. Just name your control "Master".