Hypersonic Speakers - Acoustic Heterodyning

i have been searching for any technical help regarding my project, hypersonic speakers,but my efforts were in vain. hypersonic speakers are instresting to work upon. kindly guide if if you have any knowledge regarding the topic

Mail from GA

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See these links ...

Hypersonic Sound: Sound From Thin Air - Mix two signals in a nonlinear medium and you'll end up with four - two at the original frequencies....

Hypersonic Sound speakers are like Invisible headphones.

Sound technology turns the way you hear on its ear - Woody Norris, inventor of ultrasound technology,

Acoustical Society of America Lay Paper on Hypersonic Sound: -

HyperSonic Sound HSS from American Technology Corporation employs ultrasonics to create audible sound in the air. It works by using harmless ultrasonic tones that we can't hear

More from Woody Norris - HyperSonic Sound. speaker

delabs

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Thanks for your reply for hypersonic speakers , but sir i am unable to have any positive feed backs as far as its making is concerned, i have contacted hypersonic industries also in this context, but they want me to buy a unit. i will see what i can do. thank you once again for your help.

Reply from GA

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I dont know if this idea is good for college projects, but you can buy a Hypersonic Speaker and demonstrate an application in automation.

delabs

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