Who doesn’t like particle synthesis? Today’s patch is a glisson synthesizer. Each particle is a sine wave with an upward or downward linear frequency change. These particles shift towards or away from a variable center frequency. Glisson synthesis was first implemented by Curtis Roads and Stephen Pope in 1998. I plan on adding more polarization patterns to this patch on a later date. Currently, the user can control the outward/inward polarization. I intend the user to be able to adjust the overall frequency deviation independantly (currently this parameter is dependent on Center Frequency Deviation and Glisson Spread) and the direction of the particles (currently the patch is limited to being bidirectional). I also may make a patch that plays chunks of an audio file and adjusts the playback speeds to make glissandi. If you can think of other ideas to expand this patch I would be thrilled to hear them!
Aaron
Download the patch here:
https://www.dropbox.com/s/f731nzqs0y3dbyz/GlissonSynth.maxpat
Anderson Max Blog 