[linux-audio-user] How does one alter the main mixer volume (or any other mixer level) in ALSA from a command line (via a simple system call)?

[Raoul Bönisch]

* Ivica Bukvic <ico at fuse.net> [2003-03-06 09:07]:
> Is it possible (I presume it is) to alter mixer settings in Alsa by
> invoking some kind of a system call using shell (i.e. how the RME hdsp
> can have its stuff altered)?

amixer set Master 70%

See "man amixer" for more information.

> If so, what is the range of values that describe the loudest and softest
> levels?

It's percent. 0% is muted, 100% is loudest.

> Finally, are these levels standardized?

I think so.

	ra

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