Noise Cancelling Headphones
Sliced Bread
00:00
The Differences Between Active Noise Control and Mechanical Noise Control
Trevor: Active noise control is always working a little behind itself. It's got a slight delay in it which explains why they don't cancel out car horns for example if I'm walking down the street or someone dropping a plate in a cafe you get that opposite sound after the sound has happened so it doesn't have time to cancel outYeah there's a type of sound that you'll never do very well at and that's one of the reasons when I bought my active headphones I bought ones which also work passively, he says.
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