Signal leaks through the closed VCA

[Windfisch]

Leaking occurs even with the signal not being routed into the transistor's base terminal oO?
Leaking is stronger when a useless film capacitor is connected to the signal on the one side, floating on the other

[Windfisch]

The signal does not leak through, but the VCA or rather, the differential-to-single-ended opamp picks up signals from the air.

It seems that the breadboard is the culprit, and also the 470uF-capacitors are both unneccessary and good antennas.

[Windfisch]

This is still an issue with the new voice board.