28-Oct Non-linear dynamical systems: algorithmic composition and physical modeling
- audio feedback, room in a room in a room...
I am Sitting in a Room, Alvin Lucier (1969) listen to beginning, a bit of the middle and a bit of the end
impulse responses of spaces check out the classic music halls, Epidaurus amphitheater, 220a student's grain silo and the Aristotle U. of Thessaloniki (auth) unfinished big sound studio
I am Sitting in a Silo thanks to a 220a student's grain silo and Andrew Zhu's 220a final project (Summer, 2021) which is an efficient chuck chugin for doing convolution. Listen to pass0 and pass10.
- lecture on instruments as non-linear dynamical systems, aka linear resonators (stretched strings, tubes, etc.) coupled to non-linear excitation mechanisms (bows, reeds, etc.)
chuck code examples used in lecture these load into webchuck and run directly in browser
- listening-and-producing feedback, singers singing with the sounds of singers singing with the sounds of singers...
different performance (binaural recording)
Chris Vega's 220a final project inspired by Tuning Meditation after Pauline Oliveros' visit to 220a (2007). His chuck code can be copied and pasted and then run in webchuck. It's different each run. One of the instruments is Chuck's Bowed UG physical model (which ties back to the lecture above).
7-Oct Modulation & Delay
- FM & web audio
(from codelab )
- FM & Chuck (hw2)
- Ambisonics, source position and reverb
download 4 .wav files produced by my modified hw2 starter codes, which I stashed here
start the 220a ambisonic-recorder and load those 4 files
experiment with source position, reverberation and wall materials
- Wave physics simulator
go to rippletank Example: Internal Reflection, and experiment with waves and reflection off a wall in 2D
wavebox visualizes 3D waves (no reflections)
interactive filters with sound
interactive stretched string with sound
(written in chuck and exported to .wav file)
(written in web audio and played live in browser)
environmental and brain wave examples