[Icon-tech] Allowing Mic input to play through the headphones

[Blake Galbraith]

Hello, all.
I have been working on attempting to make the microphone input play
back through the headphones.
I am aware of a few things. Firstly, this will also play through the
Icon's speakers or earpeace when the headphones are unplugged, this is
because pretty much all of the Icon's outputs are being processed
through the headphone mixer.
2. I was playing around with the out3 and out4 in the amixer controls,
and discovered that if I set the out3, I believe it was, to the same
volume as the 'Capture to Headphone' mixer control, I think this was,
the microphone input to the earpeace would be louder.
I don't remember each command I used, but I wrote two of them down
which seem to work somewhat well.
They are
amixer set Capture 45
amixer set 'Capture Headphone Mux',0 'Stereo'
amixer set 'Capture to Headphone' 7
If anyone doesn't want an explanation of what these commands do, skip
this and go to the next paragraph.
The first command was
amixer set Capture 45
This is the capture recording level, this is what you set in the
recorder for the microphone's capture level, I believe.
amixer set 'Capture Headphone Mux',0 'Stereo'
I believe this is what brings the microphone input to the headphones,
I'm not sure if this will also work with the external microphone or
not, I haven't tried it.
amixer set 'Capture to Headphone' 7
This turns up the capture volume, I suppose this is the volume of the
output that is returned through the headphones.

I would like to know if anyone knows how to increase the output volume
of the microphone.
I'll keep playing around with it, and let anyone know if I reach a
conclusion so you're not writing about something I've already
discovered.

Thanks, all.