Experiment: better sound on remote end

[Al Johnson]

On Tuesday 09 February 2010, Neil Jerram wrote:
> On 7 February 2010 22:01, Gilles Filippini <pini at debian.org> wrote:
> > Gilles Filippini a écrit , Le 07/02/2010 15:31:
> >> Al Johnson a écrit , Le 07/02/2010 10:59:
> >>> Routing through the PGA just attenuates the signal slightly before
> >>> it gets to the mono mixer. Turning the mono mixer setting down from 7
> >>> to 6 or 5 will be just as effective.
> >>
> >> FWIW, my current working settings are:
> >> * control.48: 1
> >> * control.63: 'Right PGA'
> >> * control.12: 6
> >> * control.5:  127
> >>
> >> Following your advice, I'll give a try at:
> >> * control.63: 'Mic 2'
> >> * control.12: 5 or 4
> >
> > Wow! I've had to lower control.12 to 0 (yes: zero) to have a sound
> > volume equivalent to my previous settings'.
> 
> Just to check that I'm understanding correctly...  Are you saying
> that, for you,
> 
> >> * control.63: 'Mic 2'
> >> * control.12: 0
> 
> gives equally good audio quality as
> 
> >> * control.63: 'Right PGA'
> >> * control.12: 6

It may do for him but it might not for you. There is NO universally good 
setting! Changing control 63 from Mic2 to Right PGA is just reducing the gain 
a little, which for some people prevents clipping round the mono mixer when 
control 12 is set too high. The better answer is to set control 12 correctly 
in the first place.