Maybe ignorant, but I never worked out what this slew-limiter thing is about…?

One way I’ve used it is to put Maths between my sequencer and my oscillator to introduce slide to a sequence. Also to turn gates into A/R envelopes. By setting the rise time fairly short and the fall time longer, I believe you can also run in an audio signal and use it as an envelope follower.

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u can use it as poor-mans mangrove u-tone by patching a square from an oscillator into trig and adjusting rise until you hit a subdivision.
also a lo-fi filter if you don’t have filters in your rig. audio into signal in. rise fall all CCW, adjusting log/exp and rise/fall …

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Only a few hundred hours in on this whole business but maths feels kinda weirdly overhyped. It is an EXCELLENT utility module, but I tend to use it and (in patches I super love online/conversation in this very thread) see it used for its base functions more than its more hyped self-patching possibilities. It’s a lot of fun to go through the illustrated guide and find uses but I’m constantly struck by the realization that if I find myself using any one complex patch on it with regularity I’d just pick up a module for that purpose (most of which are like… 4 hp).

Again: GREAT general utility module but all the fancy Magicks are very “I don’t want waste my maths on that” when I can just use those other utilities.

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admittedly i also primarily use it for envelopes, but clocked random voltages into cycle, both, and cross-patching between the two envelopes can generate pretty wild and fun stuff.

also, i printed this and i refer to it often! mostly when i’m sitting down without a particular thing in mind and looking to get started.

i occasionally wonder if i should just get some “normal” envelope generators instead, but i doubt they’d ever get as funky as maths.

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Exactly my thought process at the moment!

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since maths has the only attuenverters in my system, I’ve recently been using channel 1/4 as an envelope but with the attuenuverter all the way to the negative side to close a fully open VCA so that I can eliminate the hard initial pluck from the gate in on the 2hp pluck. Then I let the last note of the 4 note poly ring out while changing pitch CV for a subtle after effect. It’s a very simple use of maths / attenuverters, but I feel like it’s opened up quite a few new ideas in my rack thinking about how to use VCA’s “in reverse” of the typical opening for an envelope. Of course this could also work for CV going through the VCA!

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Good tip. As I want to do similar with pluck. Thanks. :grinning:

Have you seen the hashtag #mathspatch on Instagram? I love trying out those that Make Noise are showing, but there are some other goodies in there besides those.

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I just generally like MN’s ‘stateless’ philosophy that one can see very well in Maths.
Not a one trick pony like some other modules, but almost endless and open to intuitive experimentation w/o menu diving.
Some very clever decisions done while designing …

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It is an EXCELLENT utility module, but I tend to use it and (in patches I super love online/conversation in this very thread) see it used for its base functions more than its more hyped self-patching possibilities.

Maths is like Exhibit A, B, and C for me that I should really spend way more time learning the modules I have - which includes spending the requisite # of hours with them until complex, arcane functionality becomes simple muscle memory - before I think about expanding my rack. It’s certainly a module with seemingly endless exploration possibilities, and that illustrated guide is just scratching the surface.

(Edit for clarity: I’m saying this mostly for myself, not anyone in this thread. I assume most everyone here is a deep sea modular diver)

I found this well-written and helpful, with lots of links to dive into:
Make Noise MATHS for Beginners

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Not sure how you describe this as a lo-fi filtering method. Maths doesn’t pass an audio signal out if you patch audio into the signal in…

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I HAVE gotten it to pass some audio, actually, but not much. In fact this makes sense, since if you “listen” to one of the channels with Cycle engaged, Rise and Fall at minimum and curve to Exponential, you do hear a tone, but a fairly low one.

So a slew-limiter just limits the rate of change in a signal. If you do this to a pitch for a voice, that’s portamento - but you can do it to any signal in eurorack. With Maths you can just run a signal through channels 1 or 4 and use the rise/fall knobs to control how fast a signal goes up or down.

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Thanks! That makes sense. Can you make an example where this is useful with voltage instead of pitch?

Sure, but that’s closer to what most people consider to be audio bleed. You could re-amp it, ad some interesting effects and make it useful, but I wouldn’t describe that as a filter.

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Sure - let’s say you want to use an envelope follower on an audio signal to control a filter. Your envelope won’t be smooth at all - it’ll likely be a jittery mess. If you run this signal through a slew-limiter you can reduce the amount of movement to something less “wattery” and more musical.

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Nice! Thanks for the explanations

hummm. only got a MN function here right now, but if if have rise/fall ccw and log/exp on lin, i get a perfectly fine version of the audio signal i’m piping in (maths should do the very same). now you increase rise or fall or both and the slew of the audio rate waveform takes away overtones. same as with a slow cv signal such as v/oct pitch, just very fast. — or am i missing something?

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There’s some discussion on slew limiters v. LPF on MW, and essentially you’re right: you can use a slew limiter as a LPF of sorts. It doesn’t function the same way, but it would certainly lower the fidelity of the wave(s) you send it

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