Device and method for analyzing audio data

A technology of audio data and analysis device, applied in speech analysis, electrical digital data processing, special data processing applications, etc., to achieve the effects of saving time, fast retrieval, and meeting viewing needs
CN101685446AInactive Publication Date: 2010-03-31SONY CHINA
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SONY CHINA
Publication Date
2010-03-31
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a device for analyzing audio data by using an SVM method. The device is characterized by comprising an input unit, a preprocessing unit, a classifying unit and a post processingunit, wherein the input unit is used for inputting audio stream; the preprocessing unit is used for preprocessing the audio stream to obtain a characteristic parameter of each frame; the classifyingunit analyzes the category to which each frame belongs according to the characteristic parameter; and the post processing unit carries out post processing on the classifying result of the classifyingunit to obtain the final subsection result. The characteristic parameter comprises short time average energy, subband energy, zero-crossing rate, Mel frequency domain cepstrum coefficient, delta Mel frequency domain cepstrum coefficient, spectrum flux and fundamental tone frequency. The invention realizes quick retrieval of splendid contents, and can save the time of audiences and meet the watching demand of the audiences.
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Description

technical field

[0001] The present invention relates to an audio data analysis device and method, in particular, the present invention relates to an analysis device and method for analyzing audio data using the SVM method. Background technique

[0002] At present, a large number of sports competitions are pouring into the audience's field of vision. The impact of more and more sports videos makes people's requirements for effective retrieval and management of sports videos more and more urgent. As far as football games are concerned, the entire game time is about 2 hours, and sometimes it will be broadcast live late at night. However, what football fans really care about and want to watch usually takes up a very small portion of the show throughout the game. In this context, fans expect an efficient content analysis and retrieval system. Using this technology, sports fans can not only selectively watch games, but also save a lot of time.

[0003] Content analysis of foot...

Claims

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