Energy-based nonuniform time-scale modification of audio...

Details Energy-based nonuniform time-scale modification of audio... Energy-based nonuniform time-scale modification of audio...

2002-10-03

2008-09-16

Lerner, Martin (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal time compression or expansion

C704S500000, C370S521000

Reexamination Certificate

active

07426470

ABSTRACT:
A method for energy based, non-uniform time-scale compression of audio signals includes receiving a frame of data corresponding to an input audio signal and segmenting the data into a plurality of segments. The method further includes estimating a value related to energy of the frame of data, determining a peak energy estimate for the frame, determining an energy threshold based on the peak energy estimate of the frame and comparing the value related to energy of the frame of the data with the energy threshold to control time-scale compression of the audio data.

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