Music-piece classification based on sustain regions

Details Music-piece classification based on sustain regions Music-piece classification based on sustain regions

2011-03-15

2011-03-15

Lerner, Martin (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S211000, C704S270000, C700S094000, C706S020000

Reexamination Certificate

active

07908135

ABSTRACT:
Audio data representative of a music piece is converted into data components in respective different frequency bands for every unit time interval to generate time frequency data pieces assigned to the respective different frequency bands. From the generated time frequency data pieces, detection is made as to each sustain region in which an effective data component in one of the frequency bands continues to occur during a reference time interval or longer. A feature quantity is calculated from at least one of (1) a number of the detected sustain regions and (2) magnitudes of the effective data components in the detected sustain regions. The music piece is classified in response to the calculated feature quantity.

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