[sdiy] CEM3340 question -- interpolating scanners (again)

Bernard Arthur Hutchins, Jr bah13 at cornell.edu
Fri Dec 4 20:27:14 CET 2020

Mike said –
“I'm usually pretty amazed that very complicated stuff on the scope actually all ends up "sounding kinda like pwm").”

Indeed!!!  Back in 1972 with Walsh functions I had a beautiful row of Xmas trees on the scope and supposed  that the audio would be stunning as well: - - sounded basically like PWM!  Lesson  (No. 2) learned.  It’s the SPECTRUM that we HEAR!

Lesson No. 1 was that all perfectly periodic waveforms are equally boring.  A dynamic spectrum (e.g., VCF) and/or purposeful animation is required.  Moog "Complexity and Dynamics".


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