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1. (WO2018222659) VOICE ACTIVITY DETECTION FOR COMMUNICATION HEADSET

Pub. No.:    WO/2018/222659    International Application No.:    PCT/US2018/035040
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu May 31 01:59:59 CEST 2018
IPC: H04R 1/10
H04R 25/00
G10L 25/78
Applicants: BOSE CORPORATION
Inventors: SAFFRAN, Richard E.
Title: VOICE ACTIVITY DETECTION FOR COMMUNICATION HEADSET
Abstract:
A headset and a method for determining that a headset user is speaking, includes receiving a first signal from a first microphone and receiving a second signal from a second microphone. A principal signal is provided from a sum of the first and second signals. A reference signal is provided from a difference between the first and second signals. A rate of change of at least one of the principal signal or the reference signal is limited by a time constant. The principal signal and the reference signal are compared, and an indication that the user is speaking is selectively made based at least in part upon the comparison.