Advanced Envelopes

This monster of an instructional is about advanced envelopes. It’s from Walker again, and uses an oscilloscope to help visualise the envelopes – a technique that is really useful when trying to understand the shape of them, especially more complex ones.

For those who are unclear, oscilloscopes plot time across the x-axis and amplitude across the y-axis. This makes it great for visualising anything from LFOs and oscillators to envelopes, DC offset and more.

I was going to try an attempt something like this myself with my Dave Jones Design Jones O’Tool+ Oscilloscope but my iPhone camera didn’t fancy it. Oscilloscopes in my DAW would have worked okay but I don’t have a DC coupled soundcard meaning many sub-sonic frequencies are filtered out, so CV wouldn’t show up too well (or at all). Regardless, Walker explains it much better than myself.

Other Uses for MATHS

There’s far too many uses to list for MATHS, some of which are detailed in the manual. Here are some of my favourites, kicking off with something from one of Raul Pena’s (of Raul’s World of Synths fame) other YouTube channels Modular Wild. This first example is using MATHS as an envelope follower:

From the same channel, here’s how to use MATHS as a clock divider. We’ve talked about clocks and sync elsewhere in this blog, so if you need to revise clocks and triggers you can do so there.

Voltage Controlled Lab is another must-follow YouTube account. Here’s a series of videos on using MATHS as a complex oscillator:

…and three videos on various ways to manipulate CV sequences:

The nice guys at Perfect Circuit Audio have a plethora of good MATHS videos hosted on their site, however I can’t seem to embed them so check them out here.

And finally from the official channel, here’s a neat Aphex Twin-inspired bouncing ball patch. This uses MATHS and an oscillator (in this case Make Noise’s DPO). By cross modulating channels 1 and 4 of MATHS in cycle mode, you can get LFO style retriggering of the cycle.

There are a tonne of MATHS tutorials both on YouTube and elsewhere online. I wanted to try and consolidate some of my favourite ones to this. So while I may not be adding a great deal extra, I hope it’s been useful to see some of the better ones in one place.

MATHS is a really damned useful module, so for anyone starting out in eurorack modular I would recommend getting one. If you’ve enjoyed this and want to learn more:

Please leave any comments or questions and I’ll do what I can to answer them. Enjoy!

Post Script

I’ve just been sent this video, again from the official Make Noise channel, on using MATHS as an envelope follower, which is interesting as I discussed using VCAs and the Doepfer A-119 Envelope follower in my last article to achieve sidechain compression.

And I’ve just been sent this on demystifying the MATHS Mixer, from MuffWiggler user mdoudoroff:

This, again from the official channel, details syncing MATHS with Ableton Live. Read more about syncing eurorack with Ableton here.

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