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An Alternative design for loudspeakers using the non-linear interaction of sound wave
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#1
08-10-2010, 03:37 PM

Presented by:
Ratish J. Punnoose

Introduction

Ex: An ultrasonic signal at 200kHz and another one at 201kHz will generate a 1kHz tone and a 401kHz signal which is inaudible to the human ear.

If an AM signal with a non-zero carrier amplitude is passed through Air, it is self-demodulated

- for more details on the topic and ppt, please follow the page link given below

http://ece.cmu.edu/~ece796/seminars/12/s...ksonic.ppt
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