v1.6.0

Huggins pitch

Filter one ear’s copy of identical noise through a narrow phase shift so a pitch emerges that exists in neither channel.

npx web-audio-api huggins-pitch 600 20s
freq=<hz>
target frequency
-d, --duration <time>
run time (CLI accepts s/m/h suffixes; default: 20s)
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 renders Huggins pitch, a binaural pitch illusion: identical noise is sent to both ears, but one channel is passed through a narrow phase shift, and a faint pitch emerges that exists in neither channel alone. Headphones are required; hear it in the browser, or render the same dual-channel noise from the Node CLI.