What is noise canceling?
The headphones equipped with the noise canceling function detect ambient noise using the built-in microphone and output antiphase sound to reduce the noise. Reducing unwanted ambient noise especially in a vehicle such as an airplane, train, bus, allowing you to enjoy music even at a low volume.
Waveform of noise (original sound) (
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The microphone built into the headphones picks up ambient noise. Then, the noise canceling circuit analyzes the signal of the noise.
Waveform of antiphase sound (
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Antiphase sound that cancels out the analyzed noise is generated.
Waveform of composed and canceled noise (
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The original and antiphase sound combine to cancel out the original sound, reducing noise at the eardrums.