[sdiy] Schmitz ADSR replace pots with CV control?

[Paul Burns (Fitvideo)]

http://www.frequencycentral.co.uk/?page_id=603


regards

Paul
-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Roman Sowa
Sent: 26 November 2013 15:00
To: Tom Wiltshire
Cc: synth-diy
Subject: Re: [sdiy] Schmitz ADSR replace pots with CV control?

>>> yes, and frankly I thought about making semi-digital envelope 
>>> recently.
>
> Come over to the dark side, Roman.You know it makes 
> sense...</darthvoice>

I've been at the dark side for last couple of years, there are a lot of good
wariors out there, don't need me too...

>
> Come come! We're on 125ns instruction cycles here! The interrupt 
> latency on the mid range PICs is usually 3 cycles - 375ns. Perhaps 
> dedicated logic is faster, but no-one is ever going to notice when 
> we're so many orders of magnitude lower than human perception.

it's a trap!
you think one microsecond here, one there, nobody notices. And suddenly you
need 3GHz quad core processor to open plain ASCII editor in less than a
minute from power up. I'll stop this rant now...

Anyway, I agree that EG is excellent example of where low-end micros can be
used and it still sounds as analog as it can be heard. And it's a matter of
taste if you like bunch of logic more than a single chip. This is not Design
For Manufacturability, it's DIY...

>
> Concepts of "elegance" in a design are definitely subjective, but for 
> me, a big spaghetti pile of logic looks complicated and messy. I'd 
> much rather see one chip and a few lines of code - my concept of 
> "elegance" is close to "how few chips can you use?", even to the 
> extent of preferring two op-amps over four. But that's me.

yeah! And I'm sure your code is as elegant as it can be. It's fun to see so
many ways of doing the same thing.

Roman
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