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[Sharing is feeding back] What goes around…and around…and around…

April 20, 2012 | 1:43 pm

Nothing too clever, but I was messing around with feedback and came up with this, howling, droning Karplusing, auto-bass lining thing.

Load a drum loop, hit a preset, adjust input level, and feed right back.

What you get depends a lot on the input source – try a four-on-the-floor 808 loop for instant Trance gratification! Dub beats work well too…

— Pasted Max Patch, click to expand. —
April 26, 2012 | 11:22 am

Here’s a much improved Max 6 version, that uses a couple of Peter McCulloch’s filters and sah~ triggering from his wonderful ‘transient designer’ patch – Peter, that thing is genius, as are your filters!

— Pasted Max Patch, click to expand. —
April 26, 2012 | 2:15 pm


very tasty Roger, loads of variation and textures from an ostensibly simple algorithm; I’m getting a "no such object: pause~" but it seems to work OK (Max 5.1.9) except for the sah stepping.


April 26, 2012 | 3:35 pm

Hi brandan,
pause~ is simply an abstraction containing a tapin-tapout pair to prevent feedback blowups. I thought I’d replaced it in the second version.
Incidentally, the second version should work fine in Max 5, except that the PM.ladder filter wont be available,

April 26, 2012 | 11:03 pm

Cool patch thanks for letting us check it out, also the scale~ object is not in 5 either – just wanted to let you know

April 27, 2012 | 12:13 pm

Scale~ is only used for the PM.ladder filter, which doesn’t work in Max 5 anyway, so no loss there.
Incidentally, scale~ seems to have changed it’s behaviour somewhere along the line, as I was baffled by that part of the patch working fine on one machine but not the other until i updated to the latest version of Max.
Such a shame there’s no equivalent to PM.ladder in Max 5 – it’s one bitchin’ filter!

PS. Oh what the Hell, I can’t stop playing with this; here’s a version with a step modulator, which considerably improves it’s potential as an auto-bassline tool. I haven’t updated the presets to match, but setting the modulation source of the delay and/or filter to ‘step’, and playing with the multislider should get you where you want to go.

April 27, 2012 | 5:21 pm

"Oh what the Hell, I can’t stop playing with this"

If you discover an antidote please let me know; I’ve posted about ten different versions of my granulator(s) online…..sigh


April 29, 2012 | 7:14 pm

Fun stuff, Roger.

@Brendan: I’d like to check it out. Can you post it to the projects page?

April 30, 2012 | 7:42 am

Certainly Peter; I’m flat out at the minute with some overdue PhD stuff, so
gimme a day or two and I’ll put up the most recent incarnation….


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Forums > MaxMSP