Speech recognition device, model training method and traffic information service platform

A speech recognition and model training technology, applied in speech recognition, speech analysis, instruments, etc., can solve the problems of speech recognition accuracy rate and accuracy speed decline, and achieve the effect of guaranteeing the recognition accuracy rate

Inactive Publication Date: 2008-10-15
TONGJI UNIV
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AI Technical Summary

Problems solved by technology

Generally speaking, more reliable sound recognition systems can only be applied in the range of small vocabulary (<1000). Onc

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  • Speech recognition device, model training method and traffic information service platform
  • Speech recognition device, model training method and traffic information service platform

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Embodiment Construction

[0049] In order to illustrate the technical scheme and technical effect of the present invention more clearly, below in conjunction with accompanying drawing, illustrate the present invention's Chinese urban traffic road name speech recognition device, speech recognition training method and the intelligent traffic information service system with this speech recognition device preferably instance.

[0050] see figure 1, which shows a block diagram of the speech recognition device of the preferred embodiment of the present invention. As shown in the figure, the voice recognition device 10 of the present invention is used in the intelligent traffic information service platform 1 to provide information input for the traffic service 20. The voice recognition device 10 includes a data collection management module 100, a model training module 110, and Speech recognition module 120. In this example, the intelligent traffic information service platform adopts Hidden Markov Model HMM s...

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Abstract

The invention discloses a voice identifying device, comprising a data collecting-managing module, a voice identifying module and a model training module. The data collecting-managing module and the model training module are respectively connected with the voice identifying module. The model training module is used for generating HMM models which are provided for being identified by the identifying device, and comprises a training configuration information unit, a voice coding-converting unit, a training-process control unit and a training intensity control unit. The data collecting-managing module comprises a recording unit and a data storing-arranging unit. The voice identifying module comprises a data pre-processing unit, a voice replaying unit and an identifying unit. As the invention provides not only the voice identifying module, but also the matched data collecting-managing module and the model training module, the corresponding identifying devices can be conveniently configured according to the traffic road name conditions of different cities to realize the effect of trafficability. With enough training data, the identifying correctness of HMM models obtained by using the training process of the invention can also be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of speech signal processing, and relates to an intelligent traffic information service application system, in particular to a speech recognition device. In addition, the present invention also relates to a model training method for the above-mentioned speech recognition device. A traffic intelligence information service platform for identification devices. Background technique [0002] In the application field of intelligent traffic information service, information service handheld terminals such as mobile phones and PDAs are limited by the environment and the quality of users, which makes human-computer information interaction inconvenient. Therefore, completing the information input from the client to the server through voice recognition has become One of the important functions of traffic information service application. [0003] Current applications of speech recognition focus on the recognition of larg...

Claims

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Application Information

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IPC IPC(8): G10L15/00G10L15/14G10L15/06G10L15/02G10L15/28G10L17/06
Inventor 蒋昌俊曾国荪陈闳中苗夺谦闫春钢方钰吴俊伟白星振
Owner TONGJI UNIV
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