[sdiy] Varible phase curves of envelopes.

[jhaible at debitel.net]

While I have not made a full ADSR like this, I have designed
an Attack-Release function at least.
Take a loot at the MOTM VCLAG: Continuous control of the slopes
from linear to exponential.

http://www.synthtech.com/motm820.html

JH.



> Has anyone here ever made an envelope generator which will allow the user to
> not only dial in the time for each phase, but it's curve (linear, log and
> degree of severity) as well?
> 
> I would LOVE to see it if you have.
> 
> I've been playing around with doppler effect and noticed that the shape of
> the envelope is everything.  The acceleration/deacceleration of the attack
> and decay is instrumental in achieving a natural effect. I have been able to
> get it with real real complicated VC of both the attack and decay (I have
> Blacet envelopes, they let me VC each phase independently - thanks for this,
> J)).  He had a trimmer inside to adjust the curve for all phases, but I was
> hoping for one where I could set that independently for each phase and of
> course, bring that to the faceplate along with VC's for it and for the time.
> 
> This has been pestering me since I saw the specs for Native Instruments' FM7
> whereby you can do this, via grab-able handles in the operator edit window,
> much like vernier curves in Illustrator.  Way cool.
> 
> My 'fantasy' envelope generator (sick idea), would be one that gave me
> separate controls for time and direction of curve of each phase, VC for each
> on each phase, onset delay, trigger (AR) and gate (AD/ADSR) recognition with
> a sensitivity pot which would allow it to be triggered on variable threshold
> levels, manual and VC control of overall EG length (time constant), EG ON
> high pulse, end of cycle pulse, Positive and inverted positive baised EG
> output.
> 
> Most of this I've figured out how to do via analog.  The overall length and
> variable curve thing has me stumped though.  suggestions?
> 
> Peter
> 
> 
> 
> 




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