Audio classification method and device and storage medium

Abstract

The invention discloses an audio classification method and device and a storage medium, and belongs to the technical field of internet. The method includes the steps of acquiring at least one target audio segment in target audio information; performing high-pass filtering and feature extraction on the at least one target audio segment to obtain at least one audio feature corresponding to the at least one target audio segment; based on an audio classification model and the at least one audio feature, determining a classification identifier of the at least one target audio segment, and determining a classification identifier of the target audio information according to the classification identifier of the at least one target audio segment, wherein a first identifier is used for indicating that the corresponding audio information is normal audio information, and a second identifier is used for indicating that the corresponding audio information is sensitive audio information. The high-pass filtering is performed before determining the classification identifier of the target audio information, the low-frequency noise of the target audio information can be filtered out, so that the casewhere the low-frequency noise is determined as the sensitive audio information does not occur, and the accuracy of the audio classification is improved.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to an audio classification method, device and storage medium. Background technique [0002] With the rapid development of Internet technology, the scale of Internet information has gradually expanded, leading to the widespread dissemination of many sensitive information, such as sensitive video and sensitive audio, etc. These sensitive videos and sensitive audio have had a bad impact on people's mental health and polluted the network. environment, it is very easy to cause network information security problems. Therefore, how to identify sensitive information has become an urgent problem to be solved. [0003] An audio classification method is provided in the related art, which can classify audio information and identify normal audio information and sensitive audio information. First, a plurality of sensitive audio information is obtained, feature extraction is performed on ea...

AI Technical Summary

Problems solved by technology

[0004] When the target audio information includes low-frequency noise, the characteristics of the low-frequency noise and sensitive audio information are relatively similar, resulting in the classification based on the mixed Gaussian model, the low-frequency noise will be mistaken for sensitive audio information, resulting in errors in audio classification. lower

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