Invention Grant
- Patent Title: Conference mixing using turbo-VAD
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Application No.: US14662955Application Date: 2015-03-19
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Publication No.: US09246962B2Publication Date: 2016-01-26
- Inventor: Anatoli Plotnikov , Timor Kardashov , Maxim Kovalenko
- Applicant: Marvell World Trade Ltd.
- Applicant Address: BB St. Michael
- Assignee: Marvell World Trade Ltd.
- Current Assignee: Marvell World Trade Ltd.
- Current Assignee Address: BB St. Michael
- Main IPC: H04L29/06
- IPC: H04L29/06 ; H04L12/18 ; H04M3/56 ; G10L25/78

Abstract:
A conference mixer includes a unit configured to receive a plurality of input streams, a spectral voice activity detection (VAD) unit configured to, for each of the input streams, generate and output a spectral VAD decision indicating whether a frame including data packets is voice, a turbo VAD unit configured to generate and output a turbo VAD decision that indicates for a frame including data packets which input stream is active, the turbo VAD decision being based on the spectral VAD decisions and a power-based decision indicating whether an estimated instantaneous power level of a frame including data packets is greater than a power threshold, and a finite state machine (FSM) unit configured to select which of the input streams to output as an active stream based on a plurality of the turbo VAD decisions, the turbo VAD decision being based in part on feedback provided by the FSM.
Public/Granted literature
- US20150195412A1 CONFERENCE MIXING USING TURBO-VAD Public/Granted day:2015-07-09
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