The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2007
Filed:
Feb. 21, 2003
Mikhael A. Sall, St. Petersburg, RU;
Sergei N. Gramnitskiy, St. Petersburg, RU;
Alexandr L. Maiboroda, St. Petersburg, RU;
Victor V. Redkov, St. Petersburg, RU;
Anatoli I. Tikhotsky, St. Petersburg, RU;
Andrei B. Viktorov, St. Petersburg, RU;
Mikhael A. Sall, St. Petersburg, RU;
Sergei N. Gramnitskiy, St. Petersburg, RU;
Alexandr L. Maiboroda, St. Petersburg, RU;
Victor V. Redkov, St. Petersburg, RU;
Anatoli I. Tikhotsky, St. Petersburg, RU;
Andrei B. Viktorov, St. Petersburg, RU;
LG Electronics Inc., Seoul, KR;
Abstract
The present invention relates to method and system for distinguishing speech from music in a digital audio signal in real time. A method for distinguishing speech from music in a digital audio signal in real time for the sound segments that have been segmented from an input signal of the digital sound processing systems by means of a segmentation unit on the base of homogeneity of their properties, comprises the steps of: (a) framing an input signal into sequence of overlapped frames by a windowing function; (b) calculating frame spectrum for every frame by FFT transform; (c) calculating segment harmony measure on base of frame spectrum sequence; (d) calculating segment noise measure on base of the frame spectrum sequence; (e) calculating segment tail measure on base of the frame spectrum sequence; (f) calculating segment drag out measure on base of the frame spectrum sequence; (g) calculating segment rhythm measure on base of the frame spectrum sequence; and (h) making the distinguishing decision based on characteristics calculated.