Data processing: speech signal processing – linguistics – language – Speech signal processing – Application
Reexamination Certificate
2007-03-27
2007-03-27
Lerner, Martin (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Application
C704S278000, C348S425100
Reexamination Certificate
active
10142510
ABSTRACT:
A method and apparatus for verifying automatically that a plurality of derivative audio (or other multimedia) files have acceptable sound quality. In one embodiment, each derivative file is compared on a byte-by-byte basis to a corresponding original file to generate a difference. The difference is compared a threshold value (that may be determined empirically). If the difference is too large for many bytes, the derivative file is tagged as having an unacceptable sound quality. In another embodiment, segments of the original and derivative files are converted to the frequency domain and analysis is performed in this domain. The resulting signal could be a tag indicating that whether the derivative file is acceptable, or could be a more comprehensive signal indicative what kind of errors were detected and in what temporal and/or spectral region for diagnostic purposes.
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Proceedings of the IEEE; Jul. 1999; vol. 87 No. 7; The Use of Watermarks in the Protection of Digital Multimedia Products; p. 1197-1207pp; by George Voyatzis, Ioannis Pitas.
International Search Report dated Sep. 13, 2002; foreign counterpart patent application PCT/US02/14650 filed May 9, 2002; entitled: Automatic Analysis of Audio Files; Inventor: George H Lydecker.
Lydecker George H.
Yvega Todd
Gottlieb Rackman & Reisman P.C.
Lerner Martin
Warner Music Group Inc.
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