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I mean, this is us lining up sine waves, “Minority Report”-style, and seeing where a vowel or a syllable is sort of falling out of place and giving the actor’s accent away.

Puccini’s heroine here is overwhelmed by oscillating sine waves.

“I said, ’Cause, man, No. 1: we sculpt an electronic signal into a sine wave that’s smooth, or a sawtooth, which is rough.

The room in the film is lined with windows that resemble filmstrips and the moving images are accompanied by a rising tone produced by a sine wave generator.

“I switched to mathematics when I tried unsuccessfully for 45 minutes to get an oscilloscope to show a sine wave.”