How far has sound cancellation technology come, for use in a room area? For example, for a bedroom? I need some sound cancellation in the bedroom due to street noises outside while I'm trying to sleep.I know they have it inside closed headsets for pilots etc, but is the technology viable yet for a closed room sized area like a bedroom?-- A Voice Of Freedom in theUnited States of America

No, and (for all practical purposes) it never will be. Headphone devices 'muffle' the higher frequecies while 'cancelling' the lower ones. But this only works with headphones.-- Luhan Monat (luhanis 'at' yahoo 'dot' com)"The future is not what it used to be..."

Sound cancellation technology?

Apr 05, 2005 41 Replies

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Fernando 21 years ago

Use a good audio amplifier and a good microphone, build an electronic circuit that should be between the pré-amplifier and the amplifier. This circuit should invert the entrance sign in 180 degrees. That is used in electrocardiogram to eliminate it collapsed of 60 Hzs / 50 Hzs.

"Luhan M> > How far has sound cancellation technology come, for use in a room area?

For

outside

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Guy Macon 21 years ago

Content-Transfer-Encoding: 8Bit

Fernando wrote:

Which part of the dozen posts explaining in detaial why this won't work are you having trouble unsterstanding?

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