AudioScope
Why Does the Cabin Get Quieter?
Hear the same cabin rumble twice. Start at a comfortable volume and listen for what drops away the second time.
How do noise-cancelling headphones work?
Microphones pick up nearby noise. The headphones drive their speakers with an opposing signal that reduces some of the sound reaching your ear. A steady, low engine rumble is easier to reduce than speech or a sudden clatter.
This simulation plays the same rumble at two levels to make the effect easy to hear. The second pass is 15 dB quieter in the source mix. The amount you hear with real headphones depends on the headset, fit and noise around you.
Hear what happens when two guitar signals cancel
Photography by Isabelli Pontes and Adrian Regeci.