[sdiy] Simple digital ADSR?
gsn10 at hotmail.com
Tue Jul 28 18:10:30 CEST 2009
Thanks (also to others who suggested the same). I knew I had seen something like that but didn't remember exactly where.
The daydream is to add some features to a Siel DK 600. It's a slippery slope though. Stereo outputs and various CV ins would be pretty simple, but the polyphonic stuff gets a little more involved. X-OR "ring mod" wouldn't be too difficult, and maybe sub oscillators. A triangle wave might be nice. Filter FM is always useful. And there's a lot of potentially interesting low level stuff to play with on the DCOs. Of course what it really needs is a second envelope...
I realize this quickly becomes insane. The conception and design aren't difficult, and that's really the problem. The implementation is where it turns into a nightmare. And it's a Siel so it's already a reliability time bomb.
Still, the PIC envelope looks pretty convenient for something like this.
> Date: Tue, 28 Jul 2009 17:28:21 +1000
> From: stewpye at optusnet.com.au
> To: Synth-diy at synth-diy.org
> Subject: Re: [sdiy] Simple digital ADSR?
> Hi Scott,
> Tom Wiltshire has.
> It would benefit from using a 12 or 16 bit DAC for the output to get
> better resolution.
> Scott Nordlund wrote:
>> Has anyone made a simple digital envelope (gate input and CV out) with, say, rotary encoders for editing, and maybe the ability to control multiple envelopes from the same interface?
>> I doesn't really matter a lot, I'm just daydreaming about adding envelopes to polysynths that aren't very well specified in this department. It would be nice if there was a more or less pre-existing solution, but I'm not really motivated enough to try my hand at it (mainly because it would inevitably become over ambitious).
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