Philip BraggMar 16
The wildest and most "out there" feature in this audio processor is, of all things, the master stereo gain control which is the 10k multiturn pot in the middle of this schematic. Yes, a single track variable resistor and no, it isn't a DC volume control.
Show threadGraham Sutherland / PolynomialMar 16
@synx508 doesn't this get fucky if left and right aren't identical signals?
Show threadGraham Sutherland / PolynomialMar 16
@synx508 or... wait, does it subtract the scaled inverse of the original subtraction? this is hurting my head.
Show threadPhilip Bragg
@gsuberland Yes, it does that. I don't know why the circuit scrambles my brain, schematics can do that if they're drawn in strange ways but this is as clear as it can possibly be and my brain just shouts "NO THIS IS IMPOSSIBLE" at it. But yeah, just scales and subtracts from that signal that's getting bigger as the other one gets smaller. Like a conjuror.
Mar 16 at 7:38pmWeb
Show threadGraham Sutherland / PolynomialMar 16
@synx508 clever, but also... augh!
Show threadAMSMar 17
@gsuberland @synx508 Uses (gain) for top and (1-(1-gain)) for bottom to let you use the same gain pot for both. Bet it sounds really weird when the pot gets dirty.