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Make Noise Maths as a wavefolder/waveshaper ???
MUFF WIGGLER Forum Index -> Eurorack Modules  
Author Make Noise Maths as a wavefolder/waveshaper ???
plogbidman
Make Noise Maths as a wavefolder/waveshaper ???
seriously, i just don't get it hmmm.....
cptnal
Biscuit!

Or... context?
insoul8
Make Noise Maths as an LFO! I like this game.
plogbidman
I don't find anything about this in the manual.
A/D envelope, yes !
LFO, yes !
Rectifier, yes !
Envelope follower, yes !
And so on...
But what about waveshaping and/or wavefolding ???
cptnal
The only thing you can really do with incoming signals is slew them, but there are all sorts of things like the audio divider patch, and what I call the Teaford patch (cycle input at audio rate) where you can have it make weird sounds on its own.

Of course I will now watch this thread for someone else to come along and prove me wrong. This is fun!
plogbidman
What is exactly that Teaford patch ? hmmm.....
cptnal
plogbidman wrote:
What is exactly that Teaford patch ? hmmm.....


Something His Mathsiness luketeaford posted a while back. I have it in The Book at home, but from memory it's like this... You patch an audio rate square into cycle and the EOC goes to your monitor. Start with rise and fall at zero, and as you raise them you get various harmonic series effects.

(That may be wrong... Must check.)
lisa
Sending a tone through channel one or four and turning rise/fall gives you some kind of shaping. I have no clue how/why though.
R.U.Nuts
lisa wrote:
Sending a tone through channel one or four and turning rise/fall gives you some kind of shaping. I have no clue how/why though.

Because a slew limiter at audio rates is a lowpass filter. With the ability to filter the rising part of a waveform differently than the falling part Maths is a great waveshaper. The results can sound pretty gnarly and distorted. I like Maths as a waveshaper. However I always use it as an envelope generator Dead Banana
orangehexagon
The timbrel variety of shaping audio with Maths is pretty limited. It won't do wave folding, but it will do wave shaping. Filtering is a type of wave shaping FWIW

wave folding and filtering are two types of wave shaping
R.U.Nuts
Apply Audio to CH 2. Set CH 2 knob to fully CW. Set CH 3 knob to noon. Take output from OR out. = Half wave rectifier. Now apply a CV to CH 3 and turn up the knob. = Dirty VCA.

Mult audio to both CH 2 and 3. Set the knob of one channel to fully CW The other one to fully CCW. Take output from OR. = Full wave rectifier.
luketeaford
cptnal wrote:
The only thing you can really do with incoming signals is slew them, but there are all sorts of things like the audio divider patch, and what I call the Teaford patch (cycle input at audio rate) where you can have it make weird sounds on its own.


Say, that's got a nice ring to it Mr. Green (Very flattering-- thank yoU!)

I threw together a few videos and due to dying battery they're on my instagram all out of order, but whatever.

Here's the product of what I think is the gnarliest waveshaping you can do with Maths: https://www.instagram.com/p/BrEkJIolFO8/?utm_source=ig_web_copy_link

The gist of it is to take a sine, set it up for PWM, feed it back on itself, modulate the PWM at audio rate, mix offsets and feedback as appropriate. Of course you can go further with full oscillators, vcas, S&H...

Here are the remaining demos in what would have been chronological order:
https://www.instagram.com/p/BrEfjBIlTvB/?utm_source=ig_web_copy_link

https://www.instagram.com/p/BrEf5pXFro7/?utm_source=ig_web_copy_link

https://www.instagram.com/p/BrEh3YEFl1o/?utm_source=ig_web_copy_link

https://www.instagram.com/p/BrEjUoVlPGi/?utm_source=ig_web_copy_link

https://www.instagram.com/p/BrEjoPnF_uy/?utm_source=ig_web_copy_link
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