Method and device for discriminating voiced and unvoiced sounds

Details Method and device for discriminating voiced and unvoiced sounds Method and device for discriminating voiced and unvoiced sounds

1996-11-25

1998-09-15

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704213, 704224, 704211, G10L 302

Patent

active

058094555

ABSTRACT:
A method and a device for discriminating a voiced sound from an unvoiced sound or background noise in speech signals are disclosed. Each block or frame of input speech signals is divided into plural sub-blocks and the standard deviation, effective value or the peak value is detected in a detection unit for detecting statistical characteristics from one sub-block to another. A bias detection unit detects a bias on the time scale of the standard deviation, effective value or the peak value to decide whether the speech signals are voiced or unvoiced from one block to another.

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