Speech detecting method

Details Speech detecting method Speech detecting method

1981-01-23

1983-08-30

Kemeny, Emanuel S.

179 1VC, G10L 100

Patent

active

044018495

ABSTRACT:
Speech signal presence is decided if total signal power is above a first threshold, and if either low or high frequency components exceed thresholds as a large fraction of the total power. Total power is calculated as the zero-order auto-correlation coefficient, and fractional power of frequency components is calculated as the first-order partial auto-correlation coefficient.

REFERENCES:
patent: 4001505 (1977-01-01), Araseki et al.
patent: 4044309 (1977-08-01), Smith
patent: 4052568 (1977-08-01), Jankowski
patent: 4074069 (1978-02-01), Tokura et al.

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