A multi-path fusion audio copyright tracing annotation method

By using a multi-path fusion audio copyright traceability and annotation method, the problem of not being able to add node records during the dissemination of audio copyright information is solved. This enables dynamic recording of dissemination node information and enhances resistance to attacks, ensuring the integrity and reliability of copyright information.

CN122455005APending Publication Date: 2026-07-24TVZONE MEDIA CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TVZONE MEDIA CO LTD
Filing Date
2026-06-26
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing technologies for audio copyright protection, copyright information cannot be updated with new transmission node records during the dissemination process, making it difficult to trace the source of infringement. Furthermore, multiple watermarks cannot be replaced by one another, resulting in insufficient overall resistance to attacks.

Method used

A multi-path fusion audio copyright traceability annotation method is adopted. By using frequency segmentation and discrete wavelet transform, the copyright traceability information is split into core fields and incremental fields, which are then redundantly encoded and encrypted. The core fields and incremental fields are embedded in a dual-path manner to dynamically record the propagation node information. The annotation information is then restored through cross-comparison and verification error correction.

Benefits of technology

It enables dynamic recording of the source information and transmission time of each node during audio transmission, improving anti-interference capabilities, ensuring the integrity and reliability of copyright information, and overcoming the shortcomings of existing technologies where information is fixed and transmission nodes cannot be traced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of audio signal processing, and specifically discloses a multi-path fusion audio copyright tracing labeling method, which comprises the following steps: performing frequency segmentation on original audio, embedding the same sequence through two independent paths of frequency domain masking site amplitude fine tuning and wavelet domain detail component sign modulation of a copyright modulation sequence, adopting double-path parallel extraction and cross comparison error correction when extracting, and even if one path is damaged, the other path can still completely recover the labeling information, so that the anti-interference ability is improved without sacrificing the auditory quality, and at the same time, the copyright tracing information is split into a core field which cannot be modified after being written for the first time and an incremental field which can be added piece by piece, so that the audio can record the source information and circulation time of each node in the propagation process, completely restore the full-link propagation path of the audio from the creation source to each propagation node, and thus the defects that the existing technology cannot trace the source of the propagation node and the circulation path due to information solidification are solved.
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Citation Information

Patent Citations

  • CN109344578A