my video is here:
[ https://www.twitch.tv/videos/656496566 ]
(i didnât trim it and donât particularly want it to be preserved forever.)
i was asked about a technical run-down so here is something like that:
(most parameters are not chosen with any particular care, except with regards to timing of events, and total durationâŚ)
electric viola feeds L/R inputs through different amplification chains. (L: dark and static, R: brighter, varied, starting quiet.)
supercollider runs on thinkpad, with 2x2 audio interface, alongisde softcut, JACK, OBS.
(supercollider code is here.)
things happen under program control:
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for 120 seconds, computer makes no sound. L input is polled and analyzed, each ânote eventâ collecting amplitude, pitch, âclarity,â and spectral flatness measures. (this is an autocorrelation-based pitch tracker, where âclarityâ is the normalized height of the autocorrelation peak.)
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the table of timestamped pitch/amp/clar/flat events is sorted by clarity. a sequence of simple oscillator voices begins to play the sorted pitches. each voice is three sinewaves at octaves; their balance, panning, amp, and duration also influenced by the captured ânote eventâ characteristics. (this mapping is seriously ad-hoc.)
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32 seconds of L/R audio is recorded, and the first few seconds begin to loop. loop amplitudes are modulated by feedback-sine LFOs, running at rates harmonically related to loop sizes.
other things occur due to manual code execution (i believe the kids call this âalive codingsâ):
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a softcut process is engaged, with 2 voices in feedback, taking alternate L/R inputs
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softcut rates are randomly modulated by low-order JI intervals
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loop rate / timing / levels are adjusted, also by JI intervals
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loops are sometimes overwritten
also, in the analog realm:
gain controls are adjusted. we follow accidental harmonic and rhyhmic traces, as perceived. our thoughts and hands slide and scrape. we encounter pain and lightness. drink coffee. the fern waves.
also, twitch tells me that iâve been awarded a Bang Bang: Ruby - Cat Girl Permanent Skin Bundle. nice