Method of determining uncertainty associated with acoustic...

Details Method of determining uncertainty associated with acoustic... Method of determining uncertainty associated with acoustic...

2007-10-30

2007-10-30

Lerner, Martin (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S233000, C704S240000

Reexamination Certificate

active

11642389

ABSTRACT:
A method and apparatus are provided for determining uncertainty in noise reduction based on a parametric model of speech distortion. The method is first used to reduce noise in a noisy signal. In particular, noise is reduced from a representation of a portion of a noisy signal to produce a representation of a cleaned signal by utilizing an acoustic environment model. The uncertainty associated with the noise reduction process is then computed. In one embodiment, the uncertainty of the noise reduction process is used, in conjunction with the noise-reduced signal, to decode a pattern state.

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