Doepfer

In a message dated 2/13/2002 4:28:39 PM Eastern Standard Time, 
synth_freak_2000@yahoo.com writes:


> I think
> it is the better solution to use the filters of your
> system. 



to all,
for what it is worth, i have had good luck in the past using this sort of 
technique. on a previous modular synth i owned, i had 4 various 
state-variable type vcfs. i liked using them in parallel as a phaser ( comb 
filter ). i felt it had a  different, "stronger" ( for lack of a better word 
) sound than the same synths v.c. phaser module.
for conventional comb filter effects beyond any companies v.c. phaser module 
requires going to something using analog delay chips.  analogue systems makes 
such a module ( i have one and it works well for short delay times )  and 
blacet ( i`ve never used theirs but it is reputed to be very good ) are both 
currently available, just to name 2 quick examples.
while an expansive product line is great, perhaps resources are better spent 
not re-inventing the wheel - ? -  better to focus on things you can do well 
that other folks aren`t doing !
just my 2 cents worth.............. : )
best,
dave




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

> conventional comb filter effects beyond any companies v.c. 
phaser module 
> requires going to something using analog delay chips.  
analogue systems makes 
> such a module ( i have one and it works well for short delay 
times )  and 
> blacet ( i`ve never used theirs but it is reputed to be very good ) 
are both 
> currently available, just to name 2 quick examples.

----
since it came up..thought i'd mention here that blacet is planning 
to discontinue production of the time machine delay as well as 
the dark star chaos modules due to IC shortages in the 
quantities they need.

sorry for OT, but it's sort of relevent to the uphill battle of 
producing this type of module... and may be of general interest 
anyway.
-duff

Hi Dave 

> state-variable type vcfs. i liked using them in parallel as a phaser ( 
> comb filter ). i felt it had a  different, "stronger" ( for lack of a 
> better word ) sound than the same synths v.c. phaser module.
This we should not forget: Take a VCF, mix the filtered signal with the
original signal and again you have a notch. I am in the lucky position to
have four filters on my A-100 (120, 121, 122 and 123). I can create very
interesting Sounds using two or more filters in parallel. 

> not re-inventing the wheel - ? -  better to focus on things you can do 
> well that other folks aren`t doing !
That is my opinion too. (And again: we already have the A-112!)

Florian
-- 
Florian Anwander                  |ConSol*  HP-Support
Tel.   +49.89.45841-133           |Consulting&Solutions Software GmbH
Fax    +49.89.45841-139           |Franziskanerstr. 38, D-81669 München
email: florian.anwander@consol.de |http://www.consol.de

hi dave,
i thought that a comb filter could be  created by
using several notch filters in series....that's what
dieter said...and now you tell me that the comb filter
needs notch filters in parallel....(????)I AM GOING
MAD!!!!!!!!
ANY HELP IS WELLCOME....
synthfreak


--- davevosh@aol.com wrote:
> In a message dated 2/13/2002 4:28:39 PM Eastern
> Standard Time, 
> synth_freak_2000@yahoo.com writes:
> 
> 
> > I think
> > it is the better solution to use the filters of
> your
> > system. 
> 
> 
> 
> to all,
> for what it is worth, i have had good luck in the
> past using this sort of 
> technique. on a previous modular synth i owned, i
> had 4 various 
> state-variable type vcfs. i liked using them in
> parallel as a phaser ( comb 
> filter ). i felt it had a  different, "stronger" (
> for lack of a better word 
> ) sound than the same synths v.c. phaser module.
> for conventional comb filter effects beyond any
> companies v.c. phaser module 
> requires going to something using analog delay
> chips.  analogue systems makes 
> such a module ( i have one and it works well for
> short delay times )  and 
> blacet ( i`ve never used theirs but it is reputed to
> be very good ) are both 
> currently available, just to name 2 quick examples.
> while an expansive product line is great, perhaps
> resources are better spent 
> not re-inventing the wheel - ? -  better to focus on
> things you can do well 
> that other folks aren`t doing !
> just my 2 cents worth.............. : )
> best,
> dave
> 
> 
> 
> 
> [Non-text portions of this message have been
> removed]
> 
> 


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

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Hi Bakis 

> dieter said...and now you tell me that the comb filter
> needs notch filters in parallel....(????)I AM GOING
> MAD!!!!!!!!
You don't have to go mad. Low- or Hi-pass filters mixed with a original
signal cause a similar effect like a notchfilters. A similar result is
available with several low/hi pass filters in parallel.

If you want to use dedicated notchfilters you have to use them in series.

Florian
-- 
Florian Anwander                  |ConSol*  HP-Support
Tel.   +49.89.45841-133           |Consulting&Solutions Software GmbH
Fax    +49.89.45841-139           |Franziskanerstr. 38, D-81669 München
email: florian.anwander@consol.de |http://www.consol.de