Will Digital Signal Processing become quick enough to create Anti Noise?

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Offline tommya300

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How fast will acoustic electronics need to be to avoid any phase shifting to create anti noise?

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Offline graham.d

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It's already been done. Noise cancelling is quite common now.

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Offline imatfaal

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Both bose and sennheiser make reasonable consumer headphones with active noise cancelling.  They are great for getting rid of the steady drone of old jet-liners or the london underground
Thereís no sense in being precise when you donít even know what youíre talking about.  John Von Neumann

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Offline tommya300

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2 or 3 years ago I seen a car commercial, they used DSP as a selling point.
After that year I see no mention relating to Car noise and DSP
That is why I asked I thought it may been only a one time auto builders adventure

Bose equipment really has cornered the sound market. Providing excellent audio!