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Tendency Mask Generator news

Tendency Mask Generator news

2009-01-14 by achtung_999

Dear list,

After having tried to convince you people several times why this would be a cool module.
(also see: http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700 )

 I tried to imitate it with some existing A100 modules.
After a long and tiresome time of trying this I thought it was time to get back to the 
source..
I had a long phone conversation with the head of the institute of Sonology in The Hague. 
Mostly to refresh my memory on the exact workings of this intricate module.
After some talking he came up with an excellent idea..
"why not release a small run of Tendency Maks generators in Doepfer format?" 

Next week I will have a meeting with him and the head technician of the institute to see 
how 
realistic this plan is...

To be continued..

Greetings,

Ernst


PS: The working of the module is actually so that it outputs a CONTINIOUS CV between the 
borders! The finished unit will probably contain FOUR seperate Tendency Mask Generators 
which share the same clock.

Re: [Doepfer_a100] Tendency Mask Generator news

2009-01-14 by Bakis Sirros

great news!

Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

[Doepfer_a100] group owner

www. parallel - worlds - music. com

www. myspace. com/ parallelworldsmusic

www. myspace. com/ interconnectedmusic

www. myspace. com/ memorygeist

www. DiN. org. uk

www. musicamaximamagnetica. com

www. shimarecords. co. uk

www. rubberrecords. gr

Athens - Greece

--- On Wed, 1/14/09, achtung_999 <heinrich.himmelwasser@gmail.com> wrote:
Show quoted textHide quoted text
From: achtung_999 <heinrich.himmelwasser@gmail.com>
Subject: [Doepfer_a100] Tendency Mask Generator news
To: Doepfer_a100@yahoogroups.com
Date: Wednesday, January 14, 2009, 4:38 PM










    
            Dear list,



After having tried to convince you people several times why this would be a cool module.

(also see: http://launch. groups.yahoo. com/group/ Doepfer_a100/ surveys?id= 12854700 )



I tried to imitate it with some existing A100 modules.

After a long and tiresome time of trying this I thought it was time to get back to the 

source..

I had a long phone conversation with the head of the institute of Sonology in The Hague. 

Mostly to refresh my memory on the exact workings of this intricate module.

After some talking he came up with an excellent idea..

"why not release a small run of Tendency Maks generators in Doepfer format?" 



Next week I will have a meeting with him and the head technician of the institute to see 

how 

realistic this plan is...



To be continued..



Greetings,



Ernst



PS: The working of the module is actually so that it outputs a CONTINIOUS CV between the 

borders! The finished unit will probably contain FOUR seperate Tendency Mask Generators 

which share the same clock.




      

    
    
	
	 
	
	








	


	
	


      

[Non-text portions of this message have been removed]

RE: [Doepfer_a100] Tendency Mask Generator news

2009-01-14 by David Salter

Oh that is really interesting news. 
 
 
 
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* * *
David Salter
Senior Consultant
SSG UKI

Thomson Reuters

O +44 (0)20 7542 2402X 52402
M 07990562402

david.salter@thomsonreuters.com
thomsonreuters.com <http://thomsonreuters.com/> 
 
P Please consider the environment before printing this e-mail 

 

________________________________
Show quoted textHide quoted text
From: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com]
On Behalf Of achtung_999
Sent: 14 January 2009 14:39
To: Doepfer_a100@yahoogroups.com
Subject: [Doepfer_a100] Tendency Mask Generator news



Dear list,

After having tried to convince you people several times why this would
be a cool module.
(also see:
http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700
<http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700>
)

I tried to imitate it with some existing A100 modules.
After a long and tiresome time of trying this I thought it was time to
get back to the 
source..
I had a long phone conversation with the head of the institute of
Sonology in The Hague. 
Mostly to refresh my memory on the exact workings of this intricate
module.
After some talking he came up with an excellent idea..
"why not release a small run of Tendency Maks generators in Doepfer
format?" 

Next week I will have a meeting with him and the head technician of the
institute to see 
how 
realistic this plan is...

To be continued..

Greetings,

Ernst

PS: The working of the module is actually so that it outputs a
CONTINIOUS CV between the 
borders! The finished unit will probably contain FOUR seperate Tendency
Mask Generators 
which share the same clock.



 


This email was sent to you by Thomson Reuters, the global news and information company.
Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Thomson Reuters.



[Non-text portions of this message have been removed]

Re: [Doepfer_a100] Tendency Mask Generator news

2009-01-14 by Pieter Volger

I definitely want one.

Pieter

achtung_999 schrieb:
Show quoted textHide quoted text
>
> Dear list,
>
> After having tried to convince you people several times why this would 
> be a cool module.
> (also see: 
> http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700 
> <http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700> )
>
> I tried to imitate it with some existing A100 modules.
> After a long and tiresome time of trying this I thought it was time to 
> get back to the
> source..
> I had a long phone conversation with the head of the institute of 
> Sonology in The Hague.
> Mostly to refresh my memory on the exact workings of this intricate 
> module.
> After some talking he came up with an excellent idea..
> "why not release a small run of Tendency Maks generators in Doepfer 
> format?"
>
> Next week I will have a meeting with him and the head technician of 
> the institute to see
> how
> realistic this plan is...
>
> To be continued..
>
> Greetings,
>
> Ernst
>
> PS: The working of the module is actually so that it outputs a 
> CONTINIOUS CV between the
> borders! The finished unit will probably contain FOUR seperate 
> Tendency Mask Generators
> which share the same clock.
>
>

Re: [Doepfer_a100] Tendency Mask Generator news

2009-01-14 by Tony Rolando

This idea sound very similar to the Blacet Improbability Drive. The 
upper and lower limits controlled by the "Width" and the center (the 
level which the random voltage fluctuate around) controlled by "level." 
The module spits out, amongst other things, random voltages btween the 
upper and lower limits as set by the width control. Check out the manual 
for better detail:

http://www.blacet.com/ID.html

THis functionality could be easily achieved with the forthcoming window 
comparator (I think Doepfer announced such a module) and a single random 
voltage generator. Right???

Tony

achtung_999 wrote:
Show quoted textHide quoted text
>
> Dear list,
>
> After having tried to convince you people several times why this would 
> be a cool module.
> (also see: 
> http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700 
> <http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700> )
>
> I tried to imitate it with some existing A100 modules.
> After a long and tiresome time of trying this I thought it was time to 
> get back to the
> source..
> I had a long phone conversation with the head of the institute of 
> Sonology in The Hague.
> Mostly to refresh my memory on the exact workings of this intricate 
> module.
> After some talking he came up with an excellent idea..
> "why not release a small run of Tendency Maks generators in Doepfer 
> format?"
>
> Next week I will have a meeting with him and the head technician of 
> the institute to see
> how
> realistic this plan is...
>
> To be continued..
>
> Greetings,
>
> Ernst
>
> PS: The working of the module is actually so that it outputs a 
> CONTINIOUS CV between the
> borders! The finished unit will probably contain FOUR seperate 
> Tendency Mask Generators
> which share the same clock.
>
>

Re: [Doepfer_a100] Tendency Mask Generator news

2009-01-14 by achtung_999

Hey Tony,

The Blacet Improbability Drive seems very interesting to me too yes.
I have been eyeing that one from the sideline..
I haven't read enough about it yet to make a straight comparison.. Soon...
And isn't the Blacet a non-eurorack module?? (a no no for me)

That poll for a window comparator was actually a result of me looking how to
produce a Tendency Mask Generator and missing several functionalities in
existing modules. I dropped the idea for the window comparator here in the
list and Bakis was kind enough to make a poll out of it.
The window comparator has partly some similarities to the Tendency Maks
Generator. But the TMG is more than that!
It has its own clock source, the speed of the random voltage, which can go
really fast.. As I remember well straight into audio speeds.. providing
different coloured noise textures. (don't pin me on this one it's been more
than 5 years since I worked with it!--more news on that next week). I again
like to point out that what comes out of the TMG is a continous voltage. On
the unit in the studio @ Sonology four seperate units share one internal
clock but each section has its own pair of border inputs.

Be aware that the Tendency Mask Generator comes from a computer music frame
of mind.
The idea stems from the German composer Gottfried Michael Koenig (
http://www.koenigproject.nl/ ).
He masked random values to fit in between borderlines to obtain several
parameters for his compositions. This was all done in the seventies at the
forefront of computer music research.
Current head of Sonology, Kees Tazelaar ( http://www.keestazelaar.com ) was
keen on getting this to work in the institute's analog studio. Mainly for
use in his own compositions.

Greetings and thanks for the enthousiastic responses!

Ernst





On Wed, Jan 14, 2009 at 4:33 PM, Tony Rolando <tony@makenoisemusic.com>wrote:

>   This idea sound very similar to the Blacet Improbability Drive. The
> upper and lower limits controlled by the "Width" and the center (the
> level which the random voltage fluctuate around) controlled by "level."
> The module spits out, amongst other things, random voltages btween the
> upper and lower limits as set by the width control. Check out the manual
> for better detail:
>
> http://www.blacet.com/ID.html
>
> THis functionality could be easily achieved with the forthcoming window
> comparator (I think Doepfer announced such a module) and a single random
> voltage generator. Right???
>
> Tony
>
>
> achtung_999 wrote:
> >
> > Dear list,
> >
> > After having tried to convince you people several times why this would
> > be a cool module.
> > (also see:
> > http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700
> > <http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700>
> )
> >
> > I tried to imitate it with some existing A100 modules.
> > After a long and tiresome time of trying this I thought it was time to
> > get back to the
> > source..
> > I had a long phone conversation with the head of the institute of
> > Sonology in The Hague.
> > Mostly to refresh my memory on the exact workings of this intricate
> > module.
> > After some talking he came up with an excellent idea..
> > "why not release a small run of Tendency Maks generators in Doepfer
> > format?"
> >
> > Next week I will have a meeting with him and the head technician of
> > the institute to see
> > how
> > realistic this plan is...
> >
> > To be continued..
> >
> > Greetings,
> >
> > Ernst
> >
> > PS: The working of the module is actually so that it outputs a
> > CONTINIOUS CV between the
> > borders! The finished unit will probably contain FOUR seperate
> > Tendency Mask Generators
> > which share the same clock.
> >
> >
>
>  
>


[Non-text portions of this message have been removed]

Re: [Doepfer_a100] Tendency Mask Generator news

2009-01-15 by Tony Rolando

Ernst, what about the Plan B M24 Heisenberg Generator, the bottom half 
of that module seems to do what the TMG does... It has its own clock 
controlling speed of the random voltage.  Deviation is basically the 
same thing as  Width on the Blacet ID, or the uper and lower limits on 
the  TMG.  Mean is basically the same thing as the Level on the ID. It 
is a pretty cool module. I have one complaint; the Meter panel control 
has too much slop. I'm a picky bastard though!  There is an explanation 
of the modules on the website, you should read it and see if it will do 
what you are looking for from the TMG.


Tony

achtung_999 wrote:
Show quoted textHide quoted text
>
> Hey Tony,
>
> The Blacet Improbability Drive seems very interesting to me too yes.
> I have been eyeing that one from the sideline..
> I haven't read enough about it yet to make a straight comparison.. Soon...
> And isn't the Blacet a non-eurorack module?? (a no no for me)
>
> That poll for a window comparator was actually a result of me looking 
> how to
> produce a Tendency Mask Generator and missing several functionalities in
> existing modules. I dropped the idea for the window comparator here in the
> list and Bakis was kind enough to make a poll out of it.
> The window comparator has partly some similarities to the Tendency Maks
> Generator. But the TMG is more than that!
> It has its own clock source, the speed of the random voltage, which can go
> really fast.. As I remember well straight into audio speeds.. providing
> different coloured noise textures. (don't pin me on this one it's been 
> more
> than 5 years since I worked with it!--more news on that next week). I 
> again
> like to point out that what comes out of the TMG is a continous 
> voltage. On
> the unit in the studio @ Sonology four seperate units share one internal
> clock but each section has its own pair of border inputs.
>
> Be aware that the Tendency Mask Generator comes from a computer music 
> frame
> of mind.
> The idea stems from the German composer Gottfried Michael Koenig (
> http://www.koenigproject.nl/ <http://www.koenigproject.nl/> ).
> He masked random values to fit in between borderlines to obtain several
> parameters for his compositions. This was all done in the seventies at the
> forefront of computer music research.
> Current head of Sonology, Kees Tazelaar ( http://www.keestazelaar.com 
> <http://www.keestazelaar.com> ) was
> keen on getting this to work in the institute's analog studio. Mainly for
> use in his own compositions.
>
> Greetings and thanks for the enthousiastic responses!
>
> Ernst
>
> On Wed, Jan 14, 2009 at 4:33 PM, Tony Rolando <tony@makenoisemusic.com 
> <mailto:tony%40makenoisemusic.com>>wrote:
>
> > This idea sound very similar to the Blacet Improbability Drive. The
> > upper and lower limits controlled by the "Width" and the center (the
> > level which the random voltage fluctuate around) controlled by "level."
> > The module spits out, amongst other things, random voltages btween the
> > upper and lower limits as set by the width control. Check out the manual
> > for better detail:
> >
> > http://www.blacet.com/ID.html <http://www.blacet.com/ID.html>
> >
> > THis functionality could be easily achieved with the forthcoming window
> > comparator (I think Doepfer announced such a module) and a single random
> > voltage generator. Right???
> >
> > Tony
> >
> >
> > achtung_999 wrote:
> > >
> > > Dear list,
> > >
> > > After having tried to convince you people several times why this would
> > > be a cool module.
> > > (also see:
> > > 
> http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700 
> <http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700>
> > > 
> <http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700 
> <http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700>>
> > )
> > >
> > > I tried to imitate it with some existing A100 modules.
> > > After a long and tiresome time of trying this I thought it was time to
> > > get back to the
> > > source..
> > > I had a long phone conversation with the head of the institute of
> > > Sonology in The Hague.
> > > Mostly to refresh my memory on the exact workings of this intricate
> > > module.
> > > After some talking he came up with an excellent idea..
> > > "why not release a small run of Tendency Maks generators in Doepfer
> > > format?"
> > >
> > > Next week I will have a meeting with him and the head technician of
> > > the institute to see
> > > how
> > > realistic this plan is...
> > >
> > > To be continued..
> > >
> > > Greetings,
> > >
> > > Ernst
> > >
> > > PS: The working of the module is actually so that it outputs a
> > > CONTINIOUS CV between the
> > > borders! The finished unit will probably contain FOUR seperate
> > > Tendency Mask Generators
> > > which share the same clock.
> > >
> > >
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
>

Re: [Doepfer_a100] Tendency Mask Generator news

2009-01-15 by achtung_999

Tony,
I will spend some time this week reading up!

The Model 24 was under my attention already but again I have not read about
its operational details in full.
But what I see comes very close indeed. Although I would prefer just a
bottom and upper border CV input instead of the mean/width combi.
That's in my mind however.. I'm a picky bastard too. ;-)

Anyway what I understood from the Sonology people is that they still have
quite some PCBs lying around.
We shall see if this is able to be converted to Doepfer standards since the
power in their studio is +30/-30 volts...
The main sales pitch I can offer to choose for the TMG instead of the Blacet
ID or the Plan B M24 is that it will contain 4 units in one housing..
So it will be a quite cheap solution I think..

Anyway a big thanks for your helpfull tips Tony!

greetings from the Hague,

Ernst











On Thu, Jan 15, 2009 at 2:36 AM, Tony Rolando <tony@makenoisemusic.com>wrote:

>   Ernst, what about the Plan B M24 Heisenberg Generator, the bottom half
> of that module seems to do what the TMG does... It has its own clock
> controlling speed of the random voltage. Deviation is basically the
> same thing as Width on the Blacet ID, or the uper and lower limits on
> the TMG. Mean is basically the same thing as the Level on the ID. It
> is a pretty cool module. I have one complaint; the Meter panel control
> has too much slop. I'm a picky bastard though! There is an explanation
> of the modules on the website, you should read it and see if it will do
> what you are looking for from the TMG.
>
> Tony
>
>
> achtung_999 wrote:
> >
> > Hey Tony,
> >
> > The Blacet Improbability Drive seems very interesting to me too yes.
> > I have been eyeing that one from the sideline..
> > I haven't read enough about it yet to make a straight comparison..
> Soon...
> > And isn't the Blacet a non-eurorack module?? (a no no for me)
> >
> > That poll for a window comparator was actually a result of me looking
> > how to
> > produce a Tendency Mask Generator and missing several functionalities in
> > existing modules. I dropped the idea for the window comparator here in
> the
> > list and Bakis was kind enough to make a poll out of it.
> > The window comparator has partly some similarities to the Tendency Maks
> > Generator. But the TMG is more than that!
> > It has its own clock source, the speed of the random voltage, which can
> go
> > really fast.. As I remember well straight into audio speeds.. providing
> > different coloured noise textures. (don't pin me on this one it's been
> > more
> > than 5 years since I worked with it!--more news on that next week). I
> > again
> > like to point out that what comes out of the TMG is a continous
> > voltage. On
> > the unit in the studio @ Sonology four seperate units share one internal
> > clock but each section has its own pair of border inputs.
> >
> > Be aware that the Tendency Mask Generator comes from a computer music
> > frame
> > of mind.
> > The idea stems from the German composer Gottfried Michael Koenig (
> > http://www.koenigproject.nl/ <http://www.koenigproject.nl/> ).
> > He masked random values to fit in between borderlines to obtain several
> > parameters for his compositions. This was all done in the seventies at
> the
> > forefront of computer music research.
> > Current head of Sonology, Kees Tazelaar ( http://www.keestazelaar.com
> > <http://www.keestazelaar.com> ) was
> > keen on getting this to work in the institute's analog studio. Mainly for
> > use in his own compositions.
> >
> > Greetings and thanks for the enthousiastic responses!
> >
> > Ernst
> >
> > On Wed, Jan 14, 2009 at 4:33 PM, Tony Rolando <tony@makenoisemusic.com<tony%40makenoisemusic.com>
> > <mailto:tony%40makenoisemusic.com <tony%2540makenoisemusic.com>>>wrote:
> >
> > > This idea sound very similar to the Blacet Improbability Drive. The
> > > upper and lower limits controlled by the "Width" and the center (the
> > > level which the random voltage fluctuate around) controlled by "level."
> > > The module spits out, amongst other things, random voltages btween the
> > > upper and lower limits as set by the width control. Check out the
> manual
> > > for better detail:
> > >
> > > http://www.blacet.com/ID.html <http://www.blacet.com/ID.html>
>
> > >
> > > THis functionality could be easily achieved with the forthcoming window
> > > comparator (I think Doepfer announced such a module) and a single
> random
> > > voltage generator. Right???
> > >
> > > Tony
> > >
> > >
> > > achtung_999 wrote:
> > > >
> > > > Dear list,
> > > >
> > > > After having tried to convince you people several times why this
> would
> > > > be a cool module.
> > > > (also see:
> > > >
> > http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700
> > <http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700>
> > > >
> > <http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700
> > <http://launch.groups.yahoo.com/group/Doepfer_a100/surveys?id=12854700>>
> > > )
> > > >
> > > > I tried to imitate it with some existing A100 modules.
> > > > After a long and tiresome time of trying this I thought it was time
> to
> > > > get back to the
> > > > source..
> > > > I had a long phone conversation with the head of the institute of
> > > > Sonology in The Hague.
> > > > Mostly to refresh my memory on the exact workings of this intricate
> > > > module.
> > > > After some talking he came up with an excellent idea..
> > > > "why not release a small run of Tendency Maks generators in Doepfer
> > > > format?"
> > > >
> > > > Next week I will have a meeting with him and the head technician of
> > > > the institute to see
> > > > how
> > > > realistic this plan is...
> > > >
> > > > To be continued..
> > > >
> > > > Greetings,
> > > >
> > > > Ernst
> > > >
> > > > PS: The working of the module is actually so that it outputs a
> > > > CONTINIOUS CV between the
> > > > borders! The finished unit will probably contain FOUR seperate
> > > > Tendency Mask Generators
> > > > which share the same clock.
> > > >
> > > >
> > >
> > >
> > >
> >
> > [Non-text portions of this message have been removed]
> >
> >
>
>  
>


[Non-text portions of this message have been removed]

Tendency Processor ?

2009-01-15 by yahoo@doepfer.de

> This idea sound very similar to the Blacet Improbability Drive. The
> upper and lower limits controlled by the "Width" and the center (the
> level which the random voltage fluctuate around) controlled by "level."
> The module spits out, amongst other things, random voltages btween the
> upper and lower limits as set by the width control. Check out the manual
> for better detail:
>
> http://www.blacet.com/ID.html
>
> THis functionality could be easily achieved with the forthcoming window
> comparator (I think Doepfer announced such a module) and a single random
> voltage generator. Right???
>
> Tony

If I understand everything the Tendency Mask Generator is nothing but a
random voltage source (e.g. A-118) processed by a VCA (that controls the
spread or width) and a unit that adds an offset voltage. In this patch one
has to voltage controlled parameters: width W (VCA) and center C (offset)
and the upper and lower voltages are not controlled directly but by W and C.
But the voltages W and C can be derived from the lower (L) and upper (U)
voltage very simply. The result is:

W = (U-L)/2
C = (U+L)/2

This can be realized very simply by an adder (U+L) and subtractor (U-L)
followed by a 1:2 attenuator. The same circuit is used in the A-137-1 but in
the opposite way (i.e. upper are lower voltage are derived from center and
width, in this case for the upper and lower voltages of the upper and lower
folding level). A low cost quad OpAmp is sufficent for U+L and U-L
calculations.

It would be very easy to develop a module that consists of a VCA, the
adder/subtractor and an offset generator. Such a separate module would have
the advantage that not only a random voltage but any other control voltage
(LFO, ADSR and even audio) could be processed. The module could developed
within less than one day and the price would be in the 50-60 Euro range.

The module could look like this:

Manual Control for U (upper voltage)
CV-Input with attenuator for U (upper voltage)
Manual Control for L (lower voltage)
CV-Input with attenuator for L (lower voltage)
Input
Output

Bakis: how about a poll for such a module (maybe called "Tendency Processor"
?)

Best wishes
Dieter Doepfer



If you are interested in the equations:

U = C+W
L = C-W

calculation of W:

C=U-W
C=L+W

U-W=L+W -> U-L=2W -> W = (U-L)/2

calculation of C:

W = U-C
W = C-L

U-C=C-L -> 2C=U+L -> C = (U+L)/2

Re: [Doepfer_a100] Tendency Processor ?

2009-01-15 by Bakis Sirros

ok, i will create such a poll, asap.


Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

[Doepfer_a100] group owner

www. parallel - worlds - music. com

www. myspace. com/ parallelworldsmusic

www. myspace. com/ interconnectedmusic

www. myspace. com/ memorygeist

www. DiN. org. uk

www. musicamaximamagnetica. com

www. shimarecords. co. uk

www. rubberrecords. gr

Athens - Greece

--- On Thu, 1/15/09, yahoo@doepfer.de <yahoo@doepfer.de> wrote:
Show quoted textHide quoted text
From: yahoo@doepfer.de <yahoo@doepfer.de>
Subject: [Doepfer_a100] Tendency Processor ?
To: Doepfer_a100@yahoogroups.com
Date: Thursday, January 15, 2009, 11:56 AM










    
            > This idea sound very similar to the Blacet Improbability Drive. The

> upper and lower limits controlled by the "Width" and the center (the

> level which the random voltage fluctuate around) controlled by "level."

> The module spits out, amongst other things, random voltages btween the

> upper and lower limits as set by the width control. Check out the manual

> for better detail:

>

> http://www.blacet. com/ID.html

>

> THis functionality could be easily achieved with the forthcoming window

> comparator (I think Doepfer announced such a module) and a single random

> voltage generator. Right???

>

> Tony



If I understand everything the Tendency Mask Generator is nothing but a

random voltage source (e.g. A-118) processed by a VCA (that controls the

spread or width) and a unit that adds an offset voltage. In this patch one

has to voltage controlled parameters: width W (VCA) and center C (offset)

and the upper and lower voltages are not controlled directly but by W and C.

But the voltages W and C can be derived from the lower (L) and upper (U)

voltage very simply. The result is:



W = (U-L)/2

C = (U+L)/2



This can be realized very simply by an adder (U+L) and subtractor (U-L)

followed by a 1:2 attenuator. The same circuit is used in the A-137-1 but in

the opposite way (i.e. upper are lower voltage are derived from center and

width, in this case for the upper and lower voltages of the upper and lower

folding level). A low cost quad OpAmp is sufficent for U+L and U-L

calculations.



It would be very easy to develop a module that consists of a VCA, the

adder/subtractor and an offset generator. Such a separate module would have

the advantage that not only a random voltage but any other control voltage

(LFO, ADSR and even audio) could be processed. The module could developed

within less than one day and the price would be in the 50-60 Euro range.



The module could look like this:



Manual Control for U (upper voltage)

CV-Input with attenuator for U (upper voltage)

Manual Control for L (lower voltage)

CV-Input with attenuator for L (lower voltage)

Input

Output



Bakis: how about a poll for such a module (maybe called "Tendency Processor"

?)



Best wishes

Dieter Doepfer



If you are interested in the equations:



U = C+W

L = C-W



calculation of W:



C=U-W

C=L+W



U-W=L+W -> U-L=2W -> W = (U-L)/2



calculation of C:



W = U-C

W = C-L



U-C=C-L -> 2C=U+L -> C = (U+L)/2




      

    
    
	
	 
	
	








	


	
	


      

[Non-text portions of this message have been removed]

Re: [Doepfer_a100] Tendency Processor ?

2009-01-15 by Florian Anwander

Hi Dieter

> If I understand everything the Tendency Mask Generator is nothing but a
> random voltage source (e.g. A-118) processed by a VCA (that controls the
> spread or width) and a unit that adds an offset voltage. 
That can be done with existing modules. I think this is a very 
specialized task, which won't be used very often or by many users.
I fear the sales won't be that great. How good are the sales for similar 
specialized modules like the A149-Series?

Florian

Re: [Doepfer_a100] Tendency Processor ?

2009-01-15 by achtung_999

Hello Dieter,
Thanks for the calculations.
I managed to get a working model going in my system.
It is however a bit flimsy with the divisions, I had to waste some mixers on
that.
I'll probably get some passive attenuators...

A dedicated unit like you mention would be very nice though.
Since al the divisions are fixed then and probably more accurate than what
my trembling hands set the knobs to..
I do see Florian's point that it will probably not sell very well.
That is also why I mentioned -very limited run-- of tendency mask generators
might be made by the people at Sonology.
(in the original TMG mail)


If anyone is interested I might be able to post some sound examples tomorrow
with a schematic of the patch a milked from DIeter's calculations.

Greetings,

Ernst










On Thu, Jan 15, 2009 at 12:24 PM, Florian Anwander <fanwander@mnet-online.de
> wrote:

>   Hi Dieter
>
>
> > If I understand everything the Tendency Mask Generator is nothing but a
> > random voltage source (e.g. A-118) processed by a VCA (that controls the
> > spread or width) and a unit that adds an offset voltage.
> That can be done with existing modules. I think this is a very
> specialized task, which won't be used very often or by many users.
> I fear the sales won't be that great. How good are the sales for similar
> specialized modules like the A149-Series?
>
> Florian
>
>  
>


[Non-text portions of this message have been removed]

AW: [Doepfer_a100] Tendency Processor ?

2009-01-15 by yahoo@doepfer.de

> Hi Dieter
>
> > If I understand everything the Tendency Mask Generator is nothing but a
> > random voltage source (e.g. A-118) processed by a VCA (that controls the
> > spread or width) and a unit that adds an offset voltage.
> That can be done with existing modules. I think this is a very
> specialized task, which won't be used very often or by many users.
> I fear the sales won't be that great. How good are the sales for similar
> specialized modules like the A149-Series?
>
> Florian

The sales of the A-149 series are not too bad and we have already
manufactured four series and the fifth is in preparation.

There are many modules that sell much worse: e.g. anything that has to do
with DIY (like A-101-9 or A-138x), most of the expensive and more
"eccentric" modules (e.g. vactrol phaser A-101-3, morphing filter A-107,
subharmonic generator A-113, vocoder A-129-x or voltage addressed switch
A-152) and some other modules, e.g. VC decay A-142, manual gate A-164, VC
slew limiter A-171, scope module A-197-2, diode combiner A-186 gate/trigger
combiner and A-176 manual CV source. All these modules will be cancelled as
soon as the stock is sold. But so far we still have stock for the next few
months (or even years for some of the modules).

Best wishes
Dieter Doepfer

Re: [Doepfer_a100] Tendency Processor ?

2009-01-16 by achtung_999

Hello Dieter,
I had some more time with the patch I derived from the calculations you
supplied.
It seems to be doing what it should be doing..

I've attached a jpg with a block schedule of the patch I made.
Notice that I used one A138 too many but that was to keep it easy for
myself.

Audio examples will follow!



Greetings,

Ernst








On Thu, Jan 15, 2009 at 4:45 PM, <yahoo@doepfer.de> wrote:

>   > Hi Dieter
> >
> > > If I understand everything the Tendency Mask Generator is nothing but a
> > > random voltage source (e.g. A-118) processed by a VCA (that controls
> the
> > > spread or width) and a unit that adds an offset voltage.
> > That can be done with existing modules. I think this is a very
> > specialized task, which won't be used very often or by many users.
> > I fear the sales won't be that great. How good are the sales for similar
> > specialized modules like the A149-Series?
> >
> > Florian
>
> The sales of the A-149 series are not too bad and we have already
> manufactured four series and the fifth is in preparation.
>
> There are many modules that sell much worse: e.g. anything that has to do
> with DIY (like A-101-9 or A-138x), most of the expensive and more
> "eccentric" modules (e.g. vactrol phaser A-101-3, morphing filter A-107,
> subharmonic generator A-113, vocoder A-129-x or voltage addressed switch
> A-152) and some other modules, e.g. VC decay A-142, manual gate A-164, VC
> slew limiter A-171, scope module A-197-2, diode combiner A-186 gate/trigger
> combiner and A-176 manual CV source. All these modules will be cancelled as
> soon as the stock is sold. But so far we still have stock for the next few
> months (or even years for some of the modules).
>
> Best wishes
> Dieter Doepfer
>
>  
>


[Non-text portions of this message have been removed]

Re: [Doepfer_a100] Tendency Processor ?

2009-01-16 by achtung_999

Realised the jpg is probably stripped off by the mailinglist robots ;-)
here: http://i42.tinypic.com/o5asf9.jpg




On Fri, Jan 16, 2009 at 2:52 AM, achtung_999 <
heinrich.himmelwasser@gmail.com> wrote:

> Hello Dieter,
> I had some more time with the patch I derived from the calculations you
> supplied.
> It seems to be doing what it should be doing..
>
> I've attached a jpg with a block schedule of the patch I made.
> Notice that I used one A138 too many but that was to keep it easy for
> myself.
>
> Audio examples will follow!
>
>
>
> Greetings,
>
> Ernst
>
>
>
>
>
>
>
>
> On Thu, Jan 15, 2009 at 4:45 PM, <yahoo@doepfer.de> wrote:
>
>>   > Hi Dieter
>> >
>> > > If I understand everything the Tendency Mask Generator is nothing but
>> a
>> > > random voltage source (e.g. A-118) processed by a VCA (that controls
>> the
>> > > spread or width) and a unit that adds an offset voltage.
>> > That can be done with existing modules. I think this is a very
>> > specialized task, which won't be used very often or by many users.
>> > I fear the sales won't be that great. How good are the sales for similar
>> > specialized modules like the A149-Series?
>> >
>> > Florian
>>
>> The sales of the A-149 series are not too bad and we have already
>> manufactured four series and the fifth is in preparation.
>>
>> There are many modules that sell much worse: e.g. anything that has to do
>> with DIY (like A-101-9 or A-138x), most of the expensive and more
>> "eccentric" modules (e.g. vactrol phaser A-101-3, morphing filter A-107,
>> subharmonic generator A-113, vocoder A-129-x or voltage addressed switch
>> A-152) and some other modules, e.g. VC decay A-142, manual gate A-164, VC
>> slew limiter A-171, scope module A-197-2, diode combiner A-186
>> gate/trigger
>> combiner and A-176 manual CV source. All these modules will be cancelled
>> as
>> soon as the stock is sold. But so far we still have stock for the next few
>> months (or even years for some of the modules).
>>
>> Best wishes
>> Dieter Doepfer
>>
>>  
>>
>
>


[Non-text portions of this message have been removed]

AW: [Doepfer_a100] Tendency Processor ?

2009-01-16 by yahoo@doepfer.de

> Hello Dieter,
> I had some more time with the patch I derived from the calculations you
> supplied.
> It seems to be doing what it should be doing..
>
> I've attached a jpg with a block schedule of the patch I made.
> Notice that I used one A138 too many but that was to keep it easy for
> myself.
>
> Audio examples will follow!
>
> Greetings,
>
> Ernst

Thank you for the feedback. Good to know that the theory does work in
practice too. If there will be sufficient inquiries we could release a
tendency processor module, that includes all this functions in one module,
within a short time.

Best wishes
Dieter Doepfer

Re: Tendency Processor ?

2009-01-17 by jalmari3

--- In Doepfer_a100@yahoogroups.com, <yahoo@...> wrote:
> There are many modules that sell much worse...
> ...manual gate A-164... ...will be cancelled as
> soon as the stock is sold.
That is a pity. I think A-164 is a good module, but needs better 
buttons and more "compatible" gate signal.

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