Noise cancelling
Noise cancellation (most popular in headphones) is a form of active noise control which works by generating “antinoise” to counter any ambient sounds that might disrupt whatever it is the user is listening to. Antinoises are sound waves generated by tiny microphones and consist of waves with the same amplitude but opposite polarity of the sounds they’re canceling out. Where there is a trough in ambient noise’s sound waves, there is a peak in the antinoise’s sound waves. When these sound waves combine, they nullify one another in an effect dubbed noise cancellation.
Check out our guide to noise cancelling vs. sound isolating headphones »
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01/19/09 4:34pm Home A/V feature Directory: Audio features and guides
Check out all our original features and guides in the audio category. dig deeper
Profile pages: PMP (Portable Media Player), MP3, Noise cancelling, WAV, DLNA, FLAC, Satellite radio, HTIB, 7.1 channel surround sound, 5.1 channel surround sound
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01/09/09 8:01pm Computing Logitech brings G19, G13, G35, and G9x gaming hardware to CES
Logitech had four big items to promote at the CES this year, including some gaming hardware we got a brief look at last month. The… dig deeper
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Profile pages: LCD, Logitech, Logitech G series, Noise cancelling, CES 2009, Logitech G13, 7.1 channel surround sound, Logitech G35, Logitech G19, Logitech G9x
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01/07/09 5:00pm Mobile Sony Walkman NWZ-X1000 OLED touchscreen media player leaked
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12/17/08 8:00am Computing, Gaming, Home A/V feature Review: Acoustic Research ARW200 USB 5.1 surround sound headphones
Can a set of headphones truly produce great-sounding 5.1 surround sound? Read on to find out! dig deeper
Profile pages: USB, Noise cancelling, VoIP, Subwoofer, 5.1 channel surround sound, Acoustic Research ARW200 USB 5.1 surround sound headphones, Acoustic Research, Speaker driver
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12/02/08 3:17pm Home A/V Reader Review: Shure SE110 earphones
Dave Thomas wrote a review of the Shure SE110 sound isolating earphones he won in our last contest. dig deeper
Profile pages: Shure, Noise cancelling, Shure SE110, Shure SE
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12/01/08 1:26pm Home A/V, Mobile feature Headphones 101: Sound isolating vs. noise cancelling
We break down two headphone technologies that can help listeners stay isolated from crying babies, bumpy trains and other unwanted noise. dig deeper
Profile pages: Shure, Noise cancelling, Shure SE110, Bose QuietComfort 2, Shure E-series headphones
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