+ - X /

[Tim Walters]

>Adding the
>4 Saws together would add them if they were in phase.  But since they're not
>in phase, the 4 AC voltages are averaged together.  The output from the
>mixer is still in relation to the amount of each Sawtooth input that is
>allowed at the attenuators.  If they're all fully allowed, the the sum
>voltage is:
>(# of inputs x Input voltage of 1 input) / # of inputs.  An average.
>
>No??  :)

No.  :)

For simplicity, let's consider mixing two identical sine waves x.  If
they're in phase, the mixed result is equal to 2x.  If they're exactly out
of phase the mixed result is zero--complete cancellation.  Other phase
values give results in between, but not in a linear way; there are more
phase values that increase the output than decrease it.  So when you mix
two waveforms, the output tends to increase, as you would expect.

The same holds for four, but with more combinations (and greater "typical"
volume increase).


-----------------------------
"This is digitally conceived New-Pagan vomit.  And I've never tasted vomit
this good." --yet another review of my CD, this time in _Sonar Map_

Tim Walters  --  walters at digidesign.com  --  http://www.slip.net/~coredump