Cgs synth

There is of course a simple one built into my Cynare too.

Ken

>The Electronic Peasant has a simple one:
>
>http://www.electronicpeasant.com/projects/ssdrums/ssdrums.html
>
>Look at the "Skin and Shell" schematic, the AD generator. I haven't
>built it but it looks like it will hold a trigger high for as long as
>the attack stage. Low parts count, too!
>
>
>
>--- In cgs_synth@yahoogroups.com, Mark <yahoogroups@...> wrote:
>>
>>
>> I think a simple AR envelope would be a good idea -- not just for
>> drum sounds, but also for modulating filters, synced VCO's, etc.
>>
>> My modular is in MOTM format, so I'm thinking of a 1U module with
>> four knobs and four jacks, having two AR envelopes, each with a
>> trigger input and envelope output. Imho, having separate trigger and
>> gate inputs is unnecessary.
>>
>> In order to make better use of gates, it could be designed that the
>> envelope is held high as long as input is held high. That is the
>> attack starts when the input goes high, and the release starts only
>> after the input goes low (and the attack is finished). So it would
>> produce full AR envelopes with short drum triggers as one would
>> expect, but could also be controlled by using gates of different
>> lengths. Also looping, cascading, and different gate/trigger logic
>> (eg. the output always goes low when the input goes low, the envelope
>> resets on a new leading edge, etc.) could easily be implemented with
>> switched jacks and a couple of toggle switches, or hardwired
>> according to individual preference.
>>
>> While I would need to look into this further, if a panel were
>> available, this could probably be built using two MOTM-800 PCB's
>> (which are $20 each). The problem would be getting decent 1M pots.
>>
>> On 11/8/07, thomas white put forth:
>> >Ken,
>> >
>> >Not too sure what your thoughts would be on this
>> >but... I have recently found the need for a simple
>> >Attack/Decay or Attack/Release module to use with my
>> >growing drum synth section of my modular. Have you
>> >ever thought about making a simple pcb like this? I
>> >was motivated to ask you after recently rediscovering
>> >your bandpass filter pcb with the stacking nature and
>> >pcb mounted pots. Anyway, thought I would put the
>> >question out there to see what you would think. My
>> >needs would be something like
>> >
>> >Attack Pot
>> >Release Pot
>> >Gate Input
>> >Trigger Input
>> >Envelope Out
>> >Manual Trigger Button
>> >LED for twinkly light folks
>> >MTA-156 power connector as standard with most other
>> >modules
>> >
>> >Of course, if you wanted to get really fancy you could
>> >add a "end out" pulse like the burst generator so they
>> >could be looped if you had multiple units. This would
>> >need a 4th jack though (but worth it for me)
>> >
>> >Just my two cents. No other pcb manufacturer has
>> >anything less than a full ADSR or VCADSR. I need to
>> >save space as many out in the community now do. Anyone
>> >else see a need for something like this?
>> >
>> >Thomas White
>> > Natural Rhythm
>> >www.naturalrhythmmusic.com
>>
>
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
>
>
>

_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>