Automatic utterance detector with high noise immunity

Details Automatic utterance detector with high noise immunity Automatic utterance detector with high noise immunity

2005-12-27

2005-12-27

Lerner, Martin (Department: 2654)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S215000, C704S233000

Reexamination Certificate

active

06980950

ABSTRACT:
An utterance detector for speech recognition is described. The detector consists of two components. The first part makes a speech
on-speech decision for each incoming speech frame. The decision is based on a frequency-selective autocorrelation function obtained by speech power spectrum estimation, frequency filter, and inverse Fourier transform. The second component makes utterance detection decision, using a state machine that describes the detection process in terms of the speech
on-speech decision made by the first component.

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Nemer et al., “Robust Voice Activity Detection Using Higher-Order Statistics in the LPC Residual Domain,” IEEE Transactions on Speech and Audio Processing, vol. 9, No. 3, Mar. 2001, pp. 217 to 231.

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