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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 220a Andrew Zhou's

220a final project is an efficient Chugin for doing convolution

- Lecture on instruments as non-linear dynamical systems, aka linear resonators coupled to non-linear excitation mechanisms (bows, reeds, etc.)

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...

Tuning Meditation, Pauline Oliveros (1971)

different performance (binaural recording)

[https://ccrma.stanford.edu/courses/220a/static/4-ck-meditation Chris Vega's

220a final project

] inspired by Tuning Meditation after Pauline Oliveros' visit. 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.

7-Oct Modulation & Delay

- FM & web audio

(from codelab )

tremolo / vibrato / filter / ADSR / FM

DX7 FM synth, web audio emulation

- FM & Chuck (hw2)

paste code from hw2 starter code into webchuck and run it

- 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

28-Sep Sonification

(written in chuck and exported to .wav file)

tides slow

tides fast

jamming with tidal sonification

(written in web audio and played live in browser)

tides fast

compare visual + auditory

environmental and brain wave examples

Earth Sciences and Med School