Method and system for distinguishing speech from music in a...

Details Method and system for distinguishing speech from music in a... Method and system for distinguishing speech from music in a...

2007-03-13

2007-03-13

Azad, Abul K. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C704S208000, C084S635000

Reexamination Certificate

active

10370063

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.

REFERENCES:
patent: 6556967 (2003-04-01), Nelson et al.
patent: 6785645 (2004-08-01), Khalil et al.
patent: 2002/0005110 (2002-01-01), Pachet et al.
patent: 2006/0015333 (2006-01-01), Gao

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