v1.6.0

Tritone paradox

Play sequential octave-complex tone pairs a tritone apart so up/down judgment turns ambiguous.

npx web-audio-api tritone-paradox 0 8 1.2
root=<0-11>
pitch class 0=C .. 11=B
pairs=<n>
number of tone pairs
rate=<hz>
tones per second
ready

Other examples

11Shepard toneLayer octave-spaced voices to create a pitch that appears to rise or fall forever.Explore 12Risset rhythmLayer tempo cycles to create a beat that appears to accelerate or decelerate forever.Explore 13Binaural beatsSend nearby frequencies to opposite ears and hear their difference.Explore 14Missing fundamentalPlay harmonics 2–6 while omitting the pitch the listener still perceives.Explore

This is the tritone paradox: sequential tone pairs a tritone apart are played, and whether each pair sounds like it moves up or down turns out to be ambiguous and listener-dependent. Hear it in the browser, or render the octave-complex pairs from the Node CLI for closer study.