[sdiy] 36dB VCF output drop while increasing emphases

[Carsten Toensmann]

The MS20 for instance has an adjustable peak which adds som very cool
distortions to the sound, so I would make it adjustable. The same for the
amount of poles, as there are musical applications for 12db (e. g. drum
simulation), 24db and so on.

Carsten
www.analog-monster.de

-----Ursprüngliche Nachricht-----
Von: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] Im Auftrag von Harald
Gesendet: Freitag, 17. April 2015 14:08
An: synth-diy at dropmix.xs4all.nl
Betreff: [sdiy] 36dB VCF output drop while increasing emphases

I am just working on a 36dB VCF. Plain forward design with LM13700. 
First steps here:  http://www.haraldswerk.de/wrdprs/ . As we know, output
level decreases with feedback (Q). This can be compensated with increasing
the output gain while increasing Q. But then the peak level of the output
will be way higher as the normal output. Which might cause distortion in the
next stage. Is there a compromise to avoid this or do i need to select:
Lower output or increased distortion?

Second thought: The filter works quite good. Does it make sense to go for
48dB musicaly?

Harald

www.haraldswerk.de
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