/diy/ - Do It Yourself

>>1663041
they are touchy as to input levels, something like -20dBu max for the signal inputs

>>1663039
looks like they're mostly just added linearly, as if you plugged them into two channels of a console, and the spectrograph agrees. if you were frequency mixing (i.e. signal multiplying) there would be sum and difference frequencies, see highlighted peaks on Pic related. the peak at 30Hz is a third harmonic of the vibrato frequency because the LFO was a bit high in level and this is far from the best architecture for a VCA. a proper VCA wouldn't have that problem (there's surely a VCA example in falstad)
also note falstad now has an audio output component for your listening pleasure. you cannot imagine how gratifying it is to mess around with fat bass synths
>dry sound convoluted with a carrier that varies its frequency
that reads more like ring modulation