[sdiy] VCO Linear FM input - DC or AC coupled?

Mattias Rickardsson mr at analogue.org
Mon Jun 26 23:20:17 CEST 2023


Neil Johnson <neil.johnson71 at gmail.com> skrev:

> ...
> Purists will pop up and say that when the modulating signal is a sine wave
> there is no difference between the two, and that's fine (lets ignore the
> pi/2 difference between sin and cos, eh?).
>

Surely the amplitudes differ, right? And the modulation depth that follows.
Louder treble and weaker bass in a differentiated sine wave. :-)

PS: I'm often thinking of the "local DC offsets" of modulated or suddenly
started sounds, and how to deal with that. Don't know if it's normal.

/mr
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