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Alternative to applying Percussive Envelopes?

October 4, 2013 | 2:40 pm

I have been producing a series of sound files for a project, where the source material is continuous and sustained, and I’d like to (also) derive more percussive sounds from the original material… call it economy of means or whatever. However, I’ve found that trying to generate interesting material by superimposing percussive envelopes to the sound results in a not particularly engaging brand of ‘variety’. What’s another way of working that others have tried?


October 4, 2013 | 3:08 pm

Hi
While it’s commonly used to achieve the opposite effect or process, have you tried granular synthesis? I’m thinking of Robert Henke’s granulator

Brendan


October 4, 2013 | 4:01 pm

I’d combine processes:

    Volume envelope
    Pitch envelope
    Pitch envelope applied to a modulator, like AM or RM
    Granular stuff
    reshuffling (jumping back a bit in the sound you’re manipulating would give a nice offset)

October 5, 2013 | 8:27 pm

I also like layering the original with various slower transpositions. (Usually octaves)
- filters with or without envelopes
-mix in sine wave with pitch/volume envelope
-send through all


October 5, 2013 | 8:38 pm

A few of my favorite things:
- layering the original with various slower transpositions. (Usually octaves or simple ratios)
-layering with very slight detune so that a directional flanging effect is created
- filters with or without envelopes
-mix in sine wave with pitch/volume envelope
-send through allpass delay
-reverse, apply time sensitive effect (reverb, delay, etc.), reverse again (works way better in an audio editor…)
-decompose sound into different spectral bands using multiple cross~ objects and apply different processes to each band
-convolution of percussive and sustained material
-use exponential rather than linear envelopes
-use an envelope follower to generate the envelope so you can control it via a microphone
-use lots of taps on a tapout~ to thicken things up


October 6, 2013 | 7:44 am

+1 for filters with envelopes.

You could try to mix the results with very short attacks stored in buffers too.


October 6, 2013 | 7:58 am

Thanks all for the suggestions! I will investigate.

After so many on-again off-again years with Max/MSP I still feel like a complete newbie.


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