Title:
METHOD FOR USER VOICE ACTIVITY DETECTION IN A COMMUNICATION ASSEMBLY, COMMUNICATION ASSEMBLY THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/148762
Kind Code:
A3
Abstract:
Many headsets include automatic noise cancellation (ANC) which dramatically reduces perceived background noise and improves user listening experience. Unfortunately, the voice microphones in these devices often capture ambient noise that the headsets output during phone calls or other communication sessions to other users. In response, many headsets and communication devices provide manual muting circuitry, but users frequently forget to turn the muting on and/or off, creating further problems as they communicate. To address this, the present inventors devised, among other things, an exemplary headset that detects the absence or presence of user speech based on two signal derived from the microphones using a matrix of transfer functions, automatically muting and unmuting the voice microphone without user intervention. Some embodiments leverage relationships between feedback and feedforward signals in ANC circuitry to detect user speech, avoiding the addition of extra hardware to the headset. Other embodiments also leverage the speech detection function to activate and deactivate keyword detectors, and/or sidetone circuits, thus extending battery.
Inventors:
AN JIAJIN (US)
WURTZ MICHAEL JON (US)
WURTZ DAVID (US)
KHAIRA MANPREET (US)
KUMAR AMIT (US)
O'CONNOR SHAWN (US)
RATHOUD SHANKAR (US)
SCANLAN JAMES (US)
SORENSEN ERIC (US)
WURTZ MICHAEL JON (US)
WURTZ DAVID (US)
KHAIRA MANPREET (US)
KUMAR AMIT (US)
O'CONNOR SHAWN (US)
RATHOUD SHANKAR (US)
SCANLAN JAMES (US)
SORENSEN ERIC (US)
Application Number:
PCT/US2018/018075
Publication Date:
September 27, 2018
Filing Date:
February 13, 2018
Export Citation:
Assignee:
AVNERA CORP (US)
International Classes:
G10L25/78; H04R3/00; G06F1/32; G10K11/16; H04R5/033
Domestic Patent References:
| WO2008134642A1 | 2008-11-06 |
Foreign References:
| US20110288860A1 | 2011-11-24 | |||
| US20140072148A1 | 2014-03-13 | |||
| US20080057857A1 | 2008-03-06 |
Attorney, Agent or Firm:
DRAKE, Eduardo (US)
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