How it works
5 min
Why noise cancelling is best at engines
Steady, low sounds are easy to predict and easy to cancel. Voices and clatter are harder. Here is why.
Active noise cancelling works by listening to the sound outside, predicting what will reach your ear a fraction of a millisecond later, and playing the opposite wave. When the two meet, they cancel.
Prediction is everything
A jet engine or a train rumble changes slowly. The prediction is almost perfect, so cancellation can take 30 dB or more off the low end. A cutlery clatter changes in a thousandth of a second, so electronics alone cannot keep up.
Where the ear tip takes over
That is why the silicone tip matters as much as the chip. The seal blocks high, sharp sounds physically. Quelde One ships four tip sizes and a fit test in the app, because a bad seal undoes half the work of the microphones.
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