System for detecting speech interval and recognizing continuous speech in a noisy environment through real-time recognition of call commands
First Claim
1. A method for recognizing a speech of a speaker by a device, the method comprising:
- receiving, by a preset call command recognition unit, an input speech spoken by the speaker;
receiving, by the preset call command recognition unit, a subsequent input speech spoken, by the speaker, subsequently to the input speech;
comparing, by the preset call command recognition unit, the input speech with a preset call command;
determining, by the preset call command recognition unit, whether the input speech is recognized as the preset call command according to a result of the comparison; and
based on determining that the input speech is recognized as the preset call command, activating a continuous speech recognition unit configured to determine whether the subsequent input speech is recognized as an actual command, in order to reduce computational load on the device; and
wherein the preset call command recognition unit comprises a token passing unit configured to assume the input speech to be the preset call command according to the result of the comparison using a minimum recognition network composed of a silence interval accompanied by noise and the preset call command.
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Abstract
A continuous speech recognition system to recognize continuous speech smoothly in a noisy environment. The system selects call commands, configures a minimum recognition network in token, which consists of the call commands and mute intervals including noises, recognizes the inputted speech continuously in real time, analyzes the reliability of speech recognition continuously and recognizes the continuous speech from a speaker. When a speaker delivers a call command, the system for detecting the speech interval and recognizing continuous speech in a noisy environment through the real-time recognition of call commands measures the reliability of the speech after recognizing the call command, and recognizes the speech from the speaker by transferring the speech interval following the call command to a continuous speech-recognition engine at the moment when the system recognizes the call command.
19 Citations
20 Claims
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1. A method for recognizing a speech of a speaker by a device, the method comprising:
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receiving, by a preset call command recognition unit, an input speech spoken by the speaker; receiving, by the preset call command recognition unit, a subsequent input speech spoken, by the speaker, subsequently to the input speech; comparing, by the preset call command recognition unit, the input speech with a preset call command; determining, by the preset call command recognition unit, whether the input speech is recognized as the preset call command according to a result of the comparison; and based on determining that the input speech is recognized as the preset call command, activating a continuous speech recognition unit configured to determine whether the subsequent input speech is recognized as an actual command, in order to reduce computational load on the device; and wherein the preset call command recognition unit comprises a token passing unit configured to assume the input speech to be the preset call command according to the result of the comparison using a minimum recognition network composed of a silence interval accompanied by noise and the preset call command. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for recognizing a speech of a speaker, the apparatus comprising:
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a processor, a preset call command recognition unit using the processor; and a continuous speech recognition unit using the processor, wherein the preset call command recognition unit is configured to receive an input speech spoken by the speaker; receive a subsequent input speech spoken, by the speaker, subsequently to the input speech; compare the input speech with a preset call command; and recognize the input speech as the preset call command according to a result of the comparison, wherein the continuous speech recognition unit is configured to recognize the subsequent input speech as an actual command if the input speech is recognized as the preset call command by the preset call command recognition unit, and wherein the preset call command recognition unit comprises a token passing unit configured to assume the input speech to be the preset call command according to the result of the comparison using a minimum recognition network composed of a silence interval accompanied by noise and the preset call command. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for recognizing a speech of a speaker by a single device, the method comprising:
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receiving, by a preset call command recognition unit of the single device, an input speech spoken by the speaker; receiving, by the preset call command recognition unit, a subsequent input speech spoken, by the speaker, subsequently to the input speech; comparing, by the preset call command recognition unit, the input speech with a preset call command; determining, by the preset call command recognition unit of the single device, whether the input speech is recognized as the preset call command according to a result of the comparison; and only if the input speech is recognized as the preset call command, activating a continuous speech recognition unit of the single device that is configured to perform continuous speech recognition to determine whether the subsequent input speech is recognized as an actual command, in order to reduce overall computational load on the single device; and wherein the preset call command recognition unit comprises a token passing unit configured to assume the input speech to be the preset call command according to the result of the comparison using a minimum recognition network composed of a silence interval accompanied by noise and the preset call command. - View Dependent Claims (18, 19, 20)
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Specification