METHOD OF LISTENING TO FREQUENCY SHIFTED SOUND SOURCES
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United States of America Patent
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N/A
Issued Date -
Oct 11, 2007
app pub date -
Mar 30, 2006
filing date -
Mar 30, 2006
priority date (Note) -
Abandoned
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Abstract
A method for listening to and comparing high-frequency sounds such as those produced by birds and insects by people suffering from high-frequency hearing loss, common among the aging population. Live sound is received by a microphone to produce an electrical signal. The signal is then digitized and transformed such that high frequency sounds are shifted to lower frequencies making them easier to hear. Recordings of known sources are also transformed for comparison.
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