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An audio classification method and system based on an SVM

A classification method and audio technology, applied in audio data retrieval, audio data query, instruments, etc.

Pending Publication Date: 2019-05-17
CHONGQING UNIV OF EDUCATION
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Problems solved by technology

However, the effectiveness of SVM methods has a strong dependence on the quality and quantity of training data

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  • An audio classification method and system based on an SVM
  • An audio classification method and system based on an SVM
  • An audio classification method and system based on an SVM

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Embodiment Construction

[0075] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0076] In the current multimedia information processing, audio occupies a very important position, but due to the characteristics of the media source itself and the constraints of existing technologies, the further analysis and utilization of audio information is limited.

[0077] Such as figure 1 As shown, the SVM-based audio classification method provided by the embodiment of the present invention includes:

[0078] In the method for extracting these characteristics of the audio, the characteristics of the audio are extracted by using the time domain characteristics and the frequency domain characteristics respectively; ...

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Abstract

The invention belongs to the technical field of audio data analysis, and discloses an audio classification method and system based on an SVM. The audio automatic classification and segmentation is animportant means for extracting the structured information and semantic content from audio and is the basis for understanding, analyzing and retrieving the audio content. In essence, classification ofthe audio data is a pattern recognition problem and comprises two basic aspects of feature extraction selection and classification. How to extract the information most capable of representing audio signal characteristics from the audio signals is crucial for audio classification; the audio feature extraction can be based on an audio frame feature analysis and extraction method and an audio-based feature analysis and extraction method; and in a method of extracting these characteristics, characteristics of audio are extracted using time domain characteristics and frequency domain characteristics, respectively. An SVM-based audio classification algorithm has a good classification effect, and the smooth audio segmentation result is more accurate.

Description

technical field [0001] The invention belongs to the technical field of audio data analysis, and in particular relates to an SVM-based audio classification method and system. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] Today's human society has entered the digital age. With the continuous development of computer technology, network technology, and communication technology, multimedia information such as images, videos, and audios has gradually become the main form of information media in the field of information processing. Among them, audio occupies a very important position. Audio is an important part of multimedia. Compared with images and videos, audio not only has unique characteristics, but also has a small amount of audio data and fast processing speed, which has attracted widespread attention. There are various forms of audio expression, meeting people's needs in life, work, entertainme...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06F16/63
Inventor 韦鹏程姜娇周震
Owner CHONGQING UNIV OF EDUCATION
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