Methods and voice activity detectors for speech encoders

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United States of America Patent

PATENT NO 9401160
APP PUB NO 20120215536A1
SERIAL NO

13502535

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Abstract

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Voice activity detectors and related methods are provided. Methods include receiving a frame of the input signal; determining a first SNR of the received frame; comparing the determined first SNR with an adaptive threshold; and detecting whether the received frame comprises voice based on the comparison. The adaptive threshold is at least based on total noise energy of a noise level, an estimate of a second SNR and on energy variation between different frames.

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Patent Owner(s)

Patent OwnerAddress
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)164 83 STOCKHOLM

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sehlstedt, Martin Luleå, SE 45 249

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