Reverse pop detection method and device thereof

Abstract

The embodiment of the invention provides a reverse pop detection method and a device thereof. The method comprises steps of determining an abrupt change time domain signal existing in a to-be-detected target audio file and an audio position where the abrupt change time domain signal exists; searching alternative audio files which are the same as the target audio file in label information and durance information; determining a homologous audio file according to a frequency spectrum energy digital sequence of the target audio file and the frequency spectrum energy digital sequence of each alternative audio file; determining a first homologous audio file with the abrupt change time domain signal in the audio position from the homologous files; and determining an abrupt change time domain signal existing in the target audio file to be a reverse pop according to the quantity of first homologous audio files and the quantity of second homologous audio files except for the first homologous audio files. According to the embodiment of the invention, reverse pops can be intelligently, quickly and precisely detected.

Description

technical field [0001] The invention relates to the technical field of multimedia processing, in particular to a method and a device for reverse pop detection. Background technique [0002] With the development of the Internet and multimedia technology, the Internet provides users with more and more types and quantities of multimedia files, which enriches people's entertainment life. In these multimedia files, audio files can be seen everywhere, such as musical audio files such as music, songs, and operas, and language audio files such as comic sketches, speeches, and training. [0003] Among the various types of audio files mentioned above, due to the complexity of audio generation, processing, transmission, storage and other steps, some audio files may have popping sounds. Popping sound, from the sense of hearing, will produce an abrupt and piercing burst point. There are many reasons for the crackling sound, which may be the scratch verification of the compact disk (CD)...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many algorithms used to detect pops, but since pops may be forward pops or reverse pops, these algorithms can detect the presence of pops in audio files, but they cannot accurately distinguish whether they are positive pops or reverse pops, and need to be manually performed twice. Confirm to fix audio files with reverse pops

For platforms with a large number of audio files, manual detection of reverse pops is time-consuming, laborious, and costly

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