my new dynamics unit

zipzap · Posted: Sun Nov 11, 2007 7:26 am Post subject: my new dynamics unit

Hi together.
I spent some time building myself an analog dynamics unit (and therefor haven´t been around here much...). It uses a diode and a pentode VCA that can be switched to compress or expand, has lots of routing choices for audio and cv, independant filtering for audio and sidechain, sidechain clipping and a mixer to add or substract different signals.
Attack and Release can be set independant for each VCA with linear or expotential responce. Timing can be adjusted down to 0. Just wondering what you think of the sounds. It´s more an effects unit than those compressors you´re not supposed to "hear".
So lots of pumping and distortion is possible. Works best on drums...
the sample "stereo" uses the independant outs of the two vcas and a mixing desc. Filter+Time has some sounds using the signal filter and distortion with very short timing constants.
They all show a dry loop first, followed by some processed samples.
add-substract conists of the original, than the processed signal, than the two added, than the two substracted.

Sorry, no shematics, but maybe i should draw some. Hope i remember the parts i used. Guess i don´t work very professionally...
But the functions i described is basically what is going on, so of course any vca and filters can be used.

add-substract.mp3

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300.53 KB

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filter+time.mp3

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1.17 MB

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stereo.mp3

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1.32 MB

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StephenGiles · Joined: Apr 17, 2006 Posts: 507 Location: England

Hey Zipzap that sounds like what I would call "compressed to buggery" so backs to the wall eh! I think you have a wonderful unit there and if you can find the time to draw and at some time post the schematic, I for one would be very grateful.

23isgood · Posted: Mon Nov 12, 2007 12:00 am Post subject:

Great sounds. I really like the stereo bass sample. Its nice when the sound fades in like that. Cool stuff fer sure!

pete

goldenechos · Posted: Fri Nov 16, 2007 5:53 pm Post subject:

I wold love to see how you did this... a diode and pentode VCA??? I have seen Diode VCA and I have seen Pentode VCA... are you combining the two???

In any case, these sounds are really cool!

Tony

shawn · Joined: Dec 13, 2005 Posts: 209 Location: savannah

This is a no brainer, I'd love to see this!

Tim Servo · Posted: Fri Nov 16, 2007 9:30 pm Post subject: my new dynamics unit

Neat! That is quite the sound mangler! What sort of power supplies are involved?

Tim (music mangler) Servo