[alsa-devel] Should "Master" control the "Line In" volume (loopback)

Takashi Iwai tiwai at suse.de
Mon Jan 24 14:24:10 CET 2011

At Sun, 23 Jan 2011 17:37:07 +0000,
Colin Guthrie wrote:
> Hi,
> I have a question-by-proxy from a user who is confused because his
> "Master" kcontrol is affecting the volume via Line In (which he uses to
> loopback an analog signal to his speakers).
> I've not got much hardware here for comparison, but I'm pretty sure that
> Master usually doesn't affect Line In.
> So couple of questions:
>  1. Is it typical that Master affects Line In?

Yes, but only for the loopback volume.  It's independent from the
line-in capture volume.


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