ADDAC601 – 8 BAND VC FIXED FILTERBANK

New Interfaces for Analog Synthesizers.

Moderators: Kent, infradead, __ag

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ndkent
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Post by ndkent » Tue Oct 04, 2011 5:02 am

As I understand it, a lot of the art is in choosing the bands and their width.

I do find it a bit much to do Envelope followers and VCAs per band. For a vocoder it would be Env followers for the encoders and VCAs for the decoders. I guess one could do 4 bands of each within the unit but that's really limited and the bands would have gaps. Better would be to buy 2 and do all VCAs on one and all Envelope followers on the other.

But then the next question is one should be able to mod or better yet have a provision to change the bands for 16 different bands over 2 units. So that would be 4 units for a 16 band vocoder

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nrdvrgr
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Post by nrdvrgr » Mon Nov 07, 2011 9:48 am

Bump! Ready yet? Demos?
-Extendunt barbam tuam, et velo-

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combat_silence
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Post by combat_silence » Mon Nov 07, 2011 3:30 pm

Yes, are these available for purchase now? Anyone have one that they can do a quick video, so we can hear how it sounds?

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__ag
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Post by __ag » Tue Nov 08, 2011 7:19 am

Hello!

yes they are being sold already,
just sold the last unit of the 1st batch...

sorry for not having posted a video yet, but have been buried with work!

good news is that a new website is coming up very very soon now, which besides being more organized, it will have more info on all modules, including the filterbank... hopefully it will be launched this week!

for those of you curious about the frequencies chosen, this is the standard all spectrum set:
50 Hz / 110Hz / 220Hz / 500Hz / 1.1kHz / 2.2kHz / 5.2kHz / 11 kHz

custom frequencies can be requested!

all the very best
andre

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ws9848
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Post by ws9848 » Tue Nov 08, 2011 7:00 pm

looking forward to the new website. I only have 2 of your modules so far but I really like them a lot!

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__ag
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Post by __ag » Sat Nov 26, 2011 8:41 am

Hello all,

here's a video for the filterbank!
more coming in the next days!

[video][/video]

all the very best
andre

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rdonker
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Post by rdonker » Sat Dec 17, 2011 12:52 am

Wow, awesome! Can't believe I'm just running into this stuff. Sweet!
-RPD

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mystico
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Post by mystico » Thu Jan 05, 2012 12:09 am

I love this thing, thank you Andre you da man :hail:

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timcoster
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Post by timcoster » Sat Jan 14, 2012 2:30 am

Wow - this looks so good! I'm keen to get this to replace what my Moog MuRF does, but in a less linear / more chaotic way.

I hope more are available soon!

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Veqtor
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Post by Veqtor » Tue Jan 24, 2012 3:41 am

Question: Can your route back the env follower outs and that way create a kind of 8 band compressor?

(With other modules of course)

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timcoster
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Post by timcoster » Tue Jan 31, 2012 4:01 am

Does anyone have any more demo's of this?

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mystico
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Post by mystico » Tue Jan 31, 2012 4:49 am

not really a demo but this might give u a feel

[video][/video]

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timcoster
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Post by timcoster » Tue Jan 31, 2012 11:45 pm

Cool thanks Mystico, that's great - Far out, those "kill switches" are amazing!

Are you putting everything through it? Nice how it's so "mixable" ... 8_)

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lionelfischer
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Post by lionelfischer » Thu Feb 16, 2012 1:23 pm

what does everyone think of the frequencies offered on this module for each band?

andre has said you can request custom frequencies

what would you choose, and why ?

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lionelfischer
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Post by lionelfischer » Sun Feb 19, 2012 10:39 pm

are the first and last filter bands SHELVES ? how does it all work exactly...

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Reptil
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Post by Reptil » Sat Mar 03, 2012 7:58 am

lionelfischer wrote:what does everyone think of the frequencies offered on this module for each band?

andre has said you can request custom frequencies

what would you choose, and why ?
that's a very good question.
harmonic relations are important, hmm maybe an "air" band and sub as well..
the quality seems to be quite good, so it's possible to use this in a mixdown as well.
Image

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ianross
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Post by ianross » Wed Mar 07, 2012 5:48 pm

sorry if I missed this in this thread or another, but what are the fixed frequencies for the eight bands as it will come off the shelf?

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Reptil
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Post by Reptil » Wed Mar 07, 2012 5:53 pm

ADDAC601 Analog Filterbank
Band distribution:
50 Hz / 110Hz / 220Hz / 500Hz / 1.1kHz / 2.2kHz / 5.2kHz / 11 kHz

here's some more:
Buchla 296e Spectral processor
<100, 150, 250, 350, 500, 630, 800, 1K, 1,3K, 1,6K, 2K, 2,6K, 3,5K, 5K, 8K, >10K

Serge Resonant Equaliser
29 Hz, 61 Hz, 115 Hz, 218 Hz, 411 Hz, 777 Hz, 1,5 KHz, 2,8 KHz, 5,2 KHz, 11 KHz

Doepfer a-129 Vocoder
100 Hz, 120 Hz, 160 Hz, 230 Hz, 330 Hz, 500 Hz, 750 Hz, 1,1 KHz, 1,3 KHz, 1,6 KHz, 2,3 KHz, 3,3 KHz, 5 KHz, 7,5 KHz, 10 KHz
Image

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NS4W
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Post by NS4W » Sat Jul 07, 2012 5:29 pm

Would anyone who got it care to do a demo of CVing the bands? curious about this module, but as usual with eurorack, there is a lack of demoes.

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lionelfischer
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Post by lionelfischer » Sat Jul 07, 2012 5:37 pm

i might be able to help.
Last edited by lionelfischer on Tue Jul 17, 2012 11:15 am, edited 1 time in total.

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NS4W
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Post by NS4W » Sun Jul 08, 2012 2:14 am

lionelfischer wrote:i might be able to help. describe your dream demo. what sounds go through it. maybe upload the audio or i can just do whatever
I'd love to hear a sequence of notes fed into the filterbank while all bands are CVed with LFOs. If possible one example with fast speeds and one with slow LFOs.

The same thing only with a constant tone would be great too.

Thanks! :cloud:

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lionelfischer
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Post by lionelfischer » Sun Jul 08, 2012 11:20 am

:zombie:
Last edited by lionelfischer on Tue Jul 10, 2012 10:44 am, edited 2 times in total.

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NS4W
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Post by NS4W » Mon Jul 09, 2012 5:21 am

lionelfischer wrote: I'll try and do this for you soon, it will be fun. let me know if what i wrote above is about right to you
allright - please do! :tu:

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lionelfischer
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Post by lionelfischer » Tue Jul 10, 2012 10:51 am

[video][/video]


for this video there is a direct line from synth going into camera line input jack
Last edited by lionelfischer on Tue Jul 10, 2012 11:53 am, edited 1 time in total.

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Hi5
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Post by Hi5 » Tue Jul 10, 2012 11:23 am

:rastanana:
tetno: https://soundcloud.com/richard-holhburn
Goiks: A eurorack setup is a contemporary folk instrument. Relatively accessible and portable. Largely by, of and for the people.

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