VOICE ACTIVITY DETECTION BASED ON PLURAL VOICE ACTIVITY DETECTORS
First Claim
1. A method of voice activity detection (VAD), comprising:
- receiving a first VAD signal from a first voice activity detector included in a device;
receiving a second VAD signal from a second voice activity detector not included in the device;
combining the first and second VAD signals into a VAD output signal; and
detecting voice activity based on the VAD output signal.
1 Assignment
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Accused Products
Abstract
A voice activity detection (VAD) system includes a first voice activity detector, a second voice activity detector and control logic. The first voice activity detector is included in a device and produces a first VAD signal. The second voice activity detector is located externally to the device and produces a second VAD signal. The control logic combines the first and second VAD signals into a VAD output signal. Voice activity may be detected based on the VAD output signal. The second VAD signal can be represented as a flag included in a packet containing digitized audio. The packet can be transmitted to the device from the externally located VAD over a wireless link.
100 Citations
32 Claims
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1. A method of voice activity detection (VAD), comprising:
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receiving a first VAD signal from a first voice activity detector included in a device; receiving a second VAD signal from a second voice activity detector not included in the device; combining the first and second VAD signals into a VAD output signal; and detecting voice activity based on the VAD output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of voice activity detection (VAD), comprising:
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providing a first device and a second device, each device configured to communicate with one another by way of a wireless link; determining a VAD signal in the second device; at the second device, setting a flag based on the VAD signal, the flag being included in a packet containing digitized audio; transmitting the packet from second device to the first device by way of the wireless link; and detecting voice activity at the first device based on the flag included in the packet. - View Dependent Claims (11)
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12. A system, comprising:
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a first voice activity detector included in a device, configured to produce a first voice activity detection (VAD) signal; a second voice activity detector not included in the device, configured to produce a second voice activity detection (VAD) signal; and control logic, in communication with the first and second voice activity detectors, configured to combine the first and second VAD signals into a VAD output signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A system, comprising:
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first means for detecting voice activity at a first location; second means for detecting voice activity at a second location; and means for combining output from the first and second means into a voice activity detection (VAD) output signal. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A computer-readable medium embodying a set of instructions executable by one or more processors, comprising:
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code for receiving a first VAD signal from a first voice activity detector included in a device; code for receiving a second VAD signal from a second voice activity detector not included in the device; and code for combining the first and second VAD signals into a VAD output signal. - View Dependent Claims (28, 29, 30, 31, 32)
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Specification