[sdiy] Synth pitch envelope

[Roman Sowa]

There is no correct shape for envelope on a synth. The player decides 
what is correct and uses what he/she likes. Any kind of pitch modulation 
is fine to me, as long at some point a tune can be distinguished. I'm 
not even touching the blip-blop type of music mostly made with modulars 
on youtube.

As far ADSR goes, the only correctness I can notice is to normalize 
Sustain level to 0, so tune during sustain is the same as without EG 
modulation. This way it can start from lower or upper pitch, and go 
there again on release. Best if ADSR can be bipolar, or rest/release 
level can be adjusted independently of attack level.

Roman

W dniu 2016-02-11 o 14:56, Richie Burnett pisze:
> Incidentally is there any feeling on what is the correct shape for a
> pitch envelope generator on a synth?  I notice that not many synths have
> this functionality, and those that do, just seem to have an AD rather
> than full ADSR.  I suppose there isn't much demand for "sustaining" at a
> detuned pitch!?  Obviously a bi-polar envelope depth control is needed
> to allow pitch modulation either up or down, but was wondering if linear
> attack and decay are the norm, or if expo curves predominate here?  Or
> is it a case of anything goes...
>
> -Richie,
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