System and method for transmitting speech activity in a distributed voice recognition system
First Claim
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1. A subscriber unit, comprising:
- a feature extraction module configured to extract a plurality of features of a speech signal;
a voice activity detection module configured to detect voice activity within the speech signal and provides an indication of the detected voice activity; and
a transmitter coupled to the feature extraction module and the voice activity detection module and configured to transmit the indication of detected voice activity ahead of the plurality of features.
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Abstract
A system and method for transmitting speech activity in a distributed voice recognition system. The distributed voice recognition system includes a local VR engine in a subscriber unit and a server VR engine on a server. The local VR engine comprises a feature extraction (FE) module that extracts features from a speech signal, and a voice activity detection module (VAD) that detects voice activity within a speech signal. Indications of voice activity are transmitted ahead of features from the subscriber unit to the server.
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Citations
7 Claims
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1. A subscriber unit, comprising:
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a feature extraction module configured to extract a plurality of features of a speech signal;
a voice activity detection module configured to detect voice activity within the speech signal and provides an indication of the detected voice activity; and
a transmitter coupled to the feature extraction module and the voice activity detection module and configured to transmit the indication of detected voice activity ahead of the plurality of features. - View Dependent Claims (3)
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2. A subscriber unit, comprising:
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means for extracting a plurality of features of a speech signal;
means for detecting voice activity with the speech signal and providing an indication of the detected voice activity; and
a transmitter coupled to the feature extraction means and the voice activity detection means and configured to transmit the indication of detected voice activity ahead of the plurality of features. - View Dependent Claims (4)
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5. A method of transmitting speech activity, comprising:
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extracting a plurality of features of a speech signal;
detecting voice activity within the speech signal and providing an indication of the detected voice activity; and
transmitting the indication of detected voice activity ahead of the plurality of features.
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6. A method of transmitting speech activity, comprising:
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extracting a plurality of features of a speech signal;
detecting voice activity with the speech signal and providing an indication of the detected voice activity; and
combining the plurality of features with an indication of the detected voice activity, thereby creating a combined indication of detected voice activity and features, wherein the indication of detected voice activity is ahead of the plurality of features. - View Dependent Claims (7)
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Specification