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Science a GoGo's Home Page Forums General Discussion General Science Discussion Forum absorbe soundwaves with soundwaves

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absorbe soundwaves with soundwaves #4977 12/21/05 06:14 PM
Joined: Dec 2005 Posts: 82 Spain B bradp OP Member
OP bradp Member B Joined: Dec 2005 Posts: 82 Spain	is this possible?? If I have a room with noise is it possible to have noice in one half of the room and silence in the other nutralizing sound waves in the middle of the room?? Have you ever heard of this?? sorry about the english.Brad from Holland

Re: absorbe soundwaves with soundwaves #4978 12/23/05 09:07 PM
Joined: Dec 2005 Posts: 82 Spain B bradp OP Member
OP bradp Member B Joined: Dec 2005 Posts: 82 Spain	guess its not the room for this subject but I have heard it is possible and they are working on this in China.Just imagen it will change the world

Re: absorbe soundwaves with soundwaves #4979 12/26/05 01:58 AM
Joined: Oct 2005 Posts: 560 London R RM Superstar
RM Superstar R Joined: Oct 2005 Posts: 560 London	Got a link?

Re: absorbe soundwaves with soundwaves #4980 12/26/05 05:09 AM
Joined: Oct 2004 Posts: 4,136 Seattle, WA D DA Morgan Megastar
DA Morgan Megastar D Joined: Oct 2004 Posts: 4,136 Seattle, WA	Is it possible? It is sold commercially by Bose. And has been for years. In fact I have a pair of 'em I wear routinely when flying. ~$300 retail. DA Morgan

Re: absorbe soundwaves with soundwaves #4981 12/26/05 07:06 PM
Joined: Dec 2005 Posts: 82 Spain B bradp OP Member
OP bradp Member B Joined: Dec 2005 Posts: 82 Spain	Let me get this straight you have the ability to nutralise sound (waves) in an open space with sound waves???? for $300 and GE and Telefonica have just pumpt 800 million euros in this project. Are you drunk?? this would and will change the world as we(maybe not you!!) know it

Re: absorbe soundwaves with soundwaves #4982 12/26/05 09:23 PM
Joined: Oct 2004 Posts: 540 Southern California U Uncle Al Superstar
Uncle Al Superstar U Joined: Oct 2004 Posts: 540 Southern California	I thought it would be interesting to have such headphones for a dentist's drill, to cancel the screaming whine. The required sampling rate is too high. I tried disposable foam ballistic earplugs and they work quite well - you can then clearly hear the tooth being ground away. It's not an improvement. Uncle Al http://www.mazepath.com/uncleal/ (Toxic URL! Unsafe for children and most mammals) http://www.mazepath.com/uncleal/qz3.pdf

Re: absorbe soundwaves with soundwaves #4983 12/27/05 05:43 PM
Joined: Oct 2004 Posts: 4,136 Seattle, WA D DA Morgan Megastar
DA Morgan Megastar D Joined: Oct 2004 Posts: 4,136 Seattle, WA	http://www.ohgizmo.com/2005/01/26/bose-noice-cancellation-that-actually-works/ And apparently the price has dropped a dollar to $299. DA Morgan

Re: absorbe soundwaves with soundwaves #4984 12/27/05 10:26 PM
Joined: Dec 2005 Posts: 82 Spain B bradp OP Member
OP bradp Member B Joined: Dec 2005 Posts: 82 Spain	DA Morgan I hope you are happy with your "really spongy earbuds" but that was not the question. Could you please answer if you think it is possible or not and your reasons.

Re: absorbe soundwaves with soundwaves #4985 12/27/05 10:59 PM
Joined: Dec 2005 Posts: 82 Spain B bradp OP Member
OP bradp Member B Joined: Dec 2005 Posts: 82 Spain	DA Morgan try www.school-for-champions.com/science/noise_cancellation.htm some resources but no answer to my question. Is it possible to have noise in one half of the room and no noise in the other half of the same room using or placing a piezoelectric devices? (cancellation in air)

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