Yahoo Groups archive

Doepfer

Index last updated: 2026-04-29 00:15 UTC

Message

Re: [Doepfer_a100] Building unit: question for everyone...

2002-01-14 by bakis Sirros

hi linium,
i don't think that 0-5 volts is a problem!with these 5
volts you have a range of 5 octaves!!!unless you need
12 octaves for your vco's...
also,the 8 bit resolution is intended and not to be
rounded by a slew limiter,right??
the real problem is the price!!for me 400-500 USD are
TOO MUCH!!i think that a price of 250 USD would be
great!!
anyway for me here in greece is too much problem to
buy a module from USA, so,.... 
but,it's an interesting module!!
synthfreak

--- Linium <intent@club-internet.fr> wrote:
> Le Dimanche 13 Janvier 2002 21:14, vous avez �crit :
> 
> > The module will be a "multi-use" digital module:
> >
> some swiss army digital knife  ? ;) 
> 
> > * It will have 4 inputs and 4 outputs. (8 bit
> resolution on the a/d and d/a
> > converters)
> >
> > * The brain will be a microcontroller, which is
> basically a little computer
> > on a circuit board, programmed in 'C' or assembly.
> >
> > * The unit will have a 16 character LED and three
> or four buttons to select
> > patches and change parameters.
> >
> > * It will NOT have non-volitile memory on board.
> 
> mmh a big drawback. at least analog gear can be
> switch off until the next day 
> to continue a patch... So it won't be possible with
> your module ? 
> 
> > * Here's what it will do:
> >
> >   Clocked pattern generation
> >   clock divider
> >   all the basic logic (and/or/xor)
> >   clocked/unclocked random gate generator
> >   gate delay, etc ...
> >
> > And, if I'm lucky, it should also do:
> >
> >   LFOs (voltage controlled)
> >   ADSRs
> >   8-bit sample and hold
> >   8-bit audio distortion (??)
> >   Noise generator
> >   Envelope follower
> >   Logical comparison of 2 voltages
> > ..and other low frequency cv stuff that won't
> suffer because of the 8 bit
> > resolution.
> >
> > QUESTIONS!!! --
> >
> > 1.  Would it be horrible if the unit only output
> 0-5 volts on the 4 output
> > lines?  I can do 0-12 volts if people wish.
> 
> I don't know but probably 0-12 volt is better
> specially if you produce some 
> patterns ? Unless these patterns are not meant to be
> played by a VCO. 
> 
> > 2.  This unit may cost a lot to produce.  Is it
> worth it?  I'm guessing
> > that the final product may cost around $400-$500
> USD.
> 
> It is some money, a module can be costy no problem
> with that. All depends of 
> the features. Will you include some slew circuit to
> round the 8 bits steps ?
> 
> > 3.  Anyone have any requests?  I'm trying to keep
> it simple so I can finish
> > it.  Some patches may have more than one function.
>  For instance, since
> > there are 4 outputs, there may be a patch with 4
> different LFOs on the
> > outputs at once.  Or, two LFOs and two ADSRs.
> 
> Will it be possible to have several lfo with
> different wave forms and 
> frequencies on 1 output ?
> 
> Best regards,
> 
> Linium
> 
> 


=====
synthfreak(parallel worlds)
athens-greece
[Doepfer_a100] group owner-moderator

__________________________________________________
Do You Yahoo!?
Send FREE video emails in Yahoo! Mail!
http://promo.yahoo.com/videomail/

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.