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Audio watermark processing method and device, electronic equipment and storage medium

An audio watermarking and processing method technology, applied in the computer field, can solve the problems of vulnerability to attack, poor robustness and concealment, and watermark damage.

Pending Publication Date: 2021-09-07
HANGZHOU NETEASE CLOUD MUSIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the existing audio watermark embedding method usually embeds the watermark in the spectrum amplitude or phase angle, which will affect the sound quality of the audio and is vulnerable to attacks, resulting in the destruction of the watermark
Therefore, the robustness and concealment of existing audio watermarking methods are poor.

Method used

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  • Audio watermark processing method and device, electronic equipment and storage medium
  • Audio watermark processing method and device, electronic equipment and storage medium
  • Audio watermark processing method and device, electronic equipment and storage medium

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Embodiment Construction

[0082] The principle and spirit of the present application will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and implement the present application, rather than to limit the scope of the present application in any way. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of this application to those skilled in the art.

[0083] Those skilled in the art know that the embodiments of the present application may be realized as a system, device, device, method or computer program product. Therefore, the present application can be specifically implemented in the following forms: complete hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.

[0084] Herein, it should be understood that any number o...

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Abstract

The invention discloses an audio watermark processing method and device, electronic equipment and a storage medium, wherein the energy for embedding a watermark can be reduced, the accurate extraction of the watermark can be ensured, and better robustness and concealment can be obtained. The method comprises the following steps: acquiring frequency domain signals respectively corresponding to each audio frame in audio; embedding watermark information into the imaginary component of the frequency domain signal corresponding to each audio frame; and performing time domain reconstruction on the frequency spectrum signal embedded with the watermark information to obtain an audio containing the watermark information.

Description

technical field [0001] The present application relates to the field of computer technology, and in particular to an audio watermark processing method, device, electronic equipment and storage medium. Background technique [0002] This section is intended to provide a background or context to the implementations of the application that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] The existing methods of embedding watermarks in audio are usually to transform the time-domain audio into the frequency domain through FFT (Fast Fourier Transform), and embed the watermark information in the spectral amplitude or phase angle of the frequency-domain signal , and then perform IFFT (Inverse Fast Fourier Transform, Inverse Fast Fourier Transform) on the frequency domain signal embedded with watermark information, reconstruct the time domain audio, and obtain the audio embedded with watermark. When extracting ...

Claims

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Application Information

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IPC IPC(8): G10L19/018G10L19/02
CPCG10L19/018G10L19/0212
Inventor 熊贝尔朱一闻曹偲郑博刘华平
Owner HANGZHOU NETEASE CLOUD MUSIC TECH CO LTD
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