Forums > MaxMSP

simple octave effect

November 3, 2010 | 4:26 am


I’m (very) new to MSP. Could someone explain how to achieve a simple octave-down effect via the adc object?


November 3, 2010 | 5:17 am

You can use cycle~ and divide by 2.

November 3, 2010 | 5:28 am

I should have clarified; I’m using real instruments. On second thought, i don’t think this will be simple at all.

November 3, 2010 | 6:57 am

see help-file for [gizmo~]
you can simply set it at a constant pitch scaling factor of 0.5(-12 semitones).

*Never fear, Noob4Life was never here!*

November 3, 2010 | 3:51 pm

Thanks for the help.

so inside a (pfft~ 1024 4) object, i have an fftin~ connected to a gizmo~ .5 going to a fftout~. I also sent the message "clip 0" to the left inlet of gizmo~. I can’t really seem to hear it working though….

November 3, 2010 | 8:02 pm

what you’ve described sounds correct. you’d have to post the patch if you want anyone to fix anything. also, what do you mean "really seem"? Do you hear something? You really always have to post the patch if you want any help. In your patch, hit Ctrl-A to select everything, then from edit select "Copy Compressed".

In this patch below (which you can view by copying all the crazy looking code then pasting it into a blank patcher window), I’ve simply copy/pasted from the gizmo help file to get what you’re after. Helpfiles and example files are there for you to break down, take apart, rewire, reappropriate, rearrange, recombine, etc. Don’t feel you have to do everything from scratch. Here is what you are looking for:

– Pasted Max Patch, click to expand. –


November 3, 2010 | 8:35 pm

hi i ended up using the gizmo help file. i couldn’t get a pitch shift unless added a second input in the pfft and controlled the pitch shift from a number box in my original patch.

is there any way around this? i don’t really need to adjust the pitch shift amount. It would be nice if it just stayed at .5 inside the pfft object…. oh well….

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