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Old May 3rd 2010, 08:30 PM   #1
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emitting high levels of khz

Is it possible to transmit a sound in high khz? say something i say into a microphone to be emitted in a high khz.
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Old May 3rd 2010, 11:06 PM   #2
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I don't quite understand what you mean. But for audible sound,i.e. sound with frequencies between 20Hz-20kHz, can be heard by human beings. Beyond 20kHz, we call that ultrasonic. When you input signals into the computer by a microphone, you can use some softwares to change the frequency of the sound.
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Old May 5th 2010, 02:05 PM   #3
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Experts Find Deaf Can Hear At High Ultrasonic Ranges - NYTimes.com

curious as to what software and what i would need to do this. Any ideas? this was in 1991 folks...
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Old May 5th 2010, 08:42 PM   #4
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It is really an intriguing idea but sorry that I don't know much about it.
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