Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Alexander Sorin0
Date of Patent
June 19, 2007
0Patent Application Number
103732580
Date Filed
February 24, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A pitch estimation system including a low-frequency band noise detector (LBND) operative to detect the presence of low-frequency band noise in a first audio frame, a frequency-domain pitch estimator operative to calculate a pitch estimation of a second audio frame from at least one spectral peak in the second audio frame, and a pitch estimator controller operative to cause the pitch estimator to exclude from the spectrum of the second audio frame at least one low-frequency spectral peak below a predefined threshold where low-frequency band noise is present in the first audio frame.
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