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System for monitoring and playing advertisement before movie playing based on audio fingerprint identification technology

A technology for audio fingerprinting and movie projection, applied in speech recognition, speech analysis, instruments, etc., can solve the problems of difficulty in guaranteeing authenticity, high cost, lack of legal evidence effect, etc., and achieve the effect of high retrieval efficiency and fast matching speed.

Inactive Publication Date: 2014-05-14
王博龙
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AI Technical Summary

Problems solved by technology

However, manual supervision is highly subjective, its authenticity is difficult to guarantee, it does not have the force of legal evidence, and the cost is high. The box office supervision and advertising monitoring costs of a film can easily cost millions
[0007] Based on the above problems, the present invention discloses a fully automatic intelligent statistical system for pre-screening advertising monitoring in cinemas, which can obtain objective data of theater advertising monitoring without human intervention, and promptly and effectively solve the problem of current theater advertising broadcasting. various problems

Method used

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  • System for monitoring and playing advertisement before movie playing based on audio fingerprint identification technology
  • System for monitoring and playing advertisement before movie playing based on audio fingerprint identification technology

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Embodiment Construction

[0021] On the audio matching device (202), the audio is decoded to obtain source data.

[0022] The audio source data is divided into windows. There is no repeated area in the window, and the size needs to be adjusted according to the needs.

[0023] Perform FFT transformation on the windowed data to obtain spectrum data.

[0024] The spectral data is divided into sub-frequency bands, and a specific value of energy in each sub-frequency band is extracted as a feature value.

[0025] All sub-band eigenvalues ​​are hashed after a certain error processing to obtain the eigenvalue of each window (that is, the audio fingerprint of this window).

[0026] Store audio fingerprints and relative start times in a database.

[0027] On the audio matching device (202), a period of environmental recording is obtained, and the same feature extraction is performed on the recording sample data, and then the audio fingerprint package is sent to the audio monitoring device (201).

[0028] The...

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Abstract

The invention discloses a system for monitoring and playing an advertisement before movie playing based on the audio fingerprint identification technology and relates to the audio fingerprint identification technology. According to the system, the content of the advertisement is monitored and matched with the audio fingerprint identification technology, and matching records are summarized and then are provided for relevant users and departments. Objective cinema advertisement monitoring and playing data can be obtained in the mode of being free of human intervention, and various problems of cinema advertisement playing are solved timely and effectively. An audio matching device decodes existing advertisement audio clips to enable source data to be obtained. Audio fingerprints and the relative starting time are saved in a database. An audio monitoring device conducts identical characteristic extraction on a data sample after obtaining an environment record of a certain period of time, and then the data are transmitted to the audio matching device through a communication module. The audio matching device conducts matching on an audio after obtaining an audio fingerprint packet from the audio monitoring device and saves a matching result in the database.

Description

technical field [0001] The invention relates to an audio fingerprint identification technology, which is used for monitoring broadcasting of pre-movie advertisements. Background technique [0002] As the terminal for the accumulation of profits in the film industry, the construction of theaters has attracted a lot of capital from inside and outside the industry. By 2012, the total number of movie screens in China was 13,118, making China the second movie market after the United States with "10,000 screens". [0003] The box office of Chinese movies has developed rapidly in recent years. In 2012, the annual box office of Chinese movies reached 17.073 billion yuan, setting a new historical record and becoming the second largest movie market in the world after the United States. [0004] With the increase in the number of moviegoers and the number of screens, the media value of movies has been revealed. Movie pre-roll ads have attracted a large number of advertisers, and thei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/04G10L19/022G10L25/54
Inventor 王博龙
Owner 王博龙
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