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System for comparing audio information and audio information comparison method

An audio information and audio technology, applied in the field of computer software, can solve problems such as manual verification of sample retrieval and matching results.

Inactive Publication Date: 2016-04-20
TIANJIN LINKHOPE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that there is currently no method for further manual verification of the sample retrieval matching results, the present invention further proposes a system for comparing audio information and an audio information comparison method

Method used

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  • System for comparing audio information and audio information comparison method

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specific Embodiment approach 1

[0015] Specific implementation mode one: combine figure 1 Describe this embodiment, a system for comparing audio information described in this embodiment includes a sample file format conversion operation module 1, a multimedia wav format file playback and control module 2, an audio sample retrieval and comparison module 3 and a comparison The result processing and interface display module 4, the sample file format conversion operation module 1 is used to convert a certain sample file in the sample library into a wav format file, and the multimedia wav format file playback and control module 2 is used to complete the directshow through directshow The wav format file is played, and the playback process is controlled interactively with the user. The audio sample retrieval and comparison module 3 is used to perform position retrieval on the target segment audio and the sample audio data through the sample retrieval method to obtain the matching position and similarity. The result...

specific Embodiment approach 2

[0016] Specific implementation mode two: combination figure 1 and figure 2 To illustrate this embodiment, the specific steps of an audio information comparison method described in this embodiment are as follows:

[0017] Step 1. Define the sample files in the sample file library as mod format files;

[0018] Step 2, extract the wav function in the sample file defined as mod format, convert the sample file defined as mod format into a sample file of wav format and save it;

[0019] Step 3, in the sample file converted to wav format, retrieve the sample file in wav format similar to the target file in wav format, the specific operation steps are:

[0020] Step 3 (1), divide the target file of wav format into a plurality of segments, i.e. reference segments, obtain the characteristics of each reference segment from the statistical value of audio frame features;

[0021] Step 3 (2), compare each reference segment with the sample file in wav format in turn, and calculate the ma...

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Abstract

The invention relates to a system and a comparison method, in particular to a system for comparing audio information and an audio information comparison method. The problem that at present, further manual verification can not be conducted on sample retrieving matching results is solved. A sample file format conversion operation module is used for converting one sample file in a sample library into the file with a wav format, a multimedia wav-format file play and control module is used for completing playing of the wav-format file through directshow and mutually controlling the playing process with a user, an audio sample retrieving comparison module is used for conducting position retrieving on targeted clips of audio and sample audio data through a sample retrieving method, the matching position and similarity are obtained, a comparison result processing and interface display module is used for conducting further processing on the matching results returned by the audio sample retrieving comparison module, and the matching results are displayed on an interface in a wave-shaped mode. The system for comparing the audio information and the audio information comparison method are used for comparing targeted audio files and sample files.

Description

technical field [0001] The invention relates to a system and a comparison method, in particular to a system and an audio information comparison method for comparing audio information, and belongs to the field of computer software. Background technique [0002] With the advent of the Internet era, the Internet is flooded with massive multimedia information. In order to effectively and automatically detect a large amount of bad information spread from abroad to China, a content-based online analysis system for network multimedia information has been developed and put into use, thus getting rid of manual detection. Although the overall effect of the online analysis system is obvious, there are also a small number of detection errors. How to further manually verify the sample retrieval and matching results has become an urgent problem to be solved. Contents of the invention [0003] In order to solve the problem that there is currently no method for further manual verification...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/683
Inventor 张明玉
Owner TIANJIN LINKHOPE TECH CO LTD
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