On Sun, May 4, 2008 at 1:30 AM, Brett McCoy <idragosani@gmail.com> wrote:
That's it, the master monitor level, it's what is used for the digital
mix (which is what is used for being able to monitor what is being
recorded while listening to audio that has been recorded. What is he's
trying to do? For applications that only use stereo out, channel 1 and
channel 2 would be used as the volume for the application (although
typically the application would have its own volume control, which is
usually controls what 2 outs you have mapped to the card).

On Sat, May 3, 2008 at 7:17 PM, david <gnome@hawaii.rr.com> wrote:
> And my friend tried envy24control and reported this:
>
>  "I installed alsa-tools-gui, and the envy24control tool was impressive,
>  but had no master volume control, whether in digital mixer mode, or not.
>  It has a master monitor mode, but no master volume."
>
>  R Dicaire wrote:
>  > envy24control is the m-audio mixer, have him check his distros
>  > repository for it, it might be part of a package called alsa-tools-gui
>  > (debian, and possibly ubuntu).
>  >
>  > On Sat, May 3, 2008 at 5:19 PM, david <gnome@hawaii.rr.com> wrote:
>  >> A friend of mine, who is an audiophile but doesn't make music, is using
>  >>  one with his Linux server (among other things, it serves audio into
>  >>  their stereo system). He tells me there's no master volume control for
>  >>  the card. He's tried KMix (no use whatever) and is now using alsamixer
>  >>  (but no master volume control). Anyway to get a master volume control
>  >>  for that card?
>
>  Brett McCoy wrote:
>  > Use the envy24control tool (it's designed specifically for the M-Audio
>  > Audiophile and Delta interfaces), it has volume controls for all of
>  > the channels plus a master volume if you are in digital mixer mode.

Step by step instructions:

1) Open envy24control.

2) Switch to the "Patchbay / Router" tab.

3) Select "Digital Mix L" in the "H/W Out 1 (L)" channel strip and "Digital Mix R" in the "H/W Out 2 (R)" strip.

4) Switch to the "Monitor PCMs" tab.

5) "L/R Gang", rise the fader and unmute "Left" and "Right" in both the "PCM Out 1" and "PCM Out 2" channel strip.

The "Digital Mix" setting will mix down all PCMs to  a stereo pair and output it on H/W Out 1 and 2.

You should now have sound, but at a much lower level than when you had "PCM Out 1" and "PCM Out 2" selected in the "Patchbay / Router", so you might want to raise the volume output level in the application that is supposed to make some sound.

--
Anders Dahnielson
<anders@dahnielson.com>