METHOD AND APPARATUS FOR WATERMARKING OF AUDIO TRACKS
    1.
    发明申请
    METHOD AND APPARATUS FOR WATERMARKING OF AUDIO TRACKS 审中-公开
    音频轨迹水印方法与装置

    公开(公告)号:WO2017029359A1

    公开(公告)日:2017-02-23

    申请号:PCT/EP2016/069607

    申请日:2016-08-18

    CPC classification number: G10L19/018 G09C5/00 G11B20/00891 H04L2209/608

    Abstract: The present invention relates to a method of watermarking an audio track by providing a database structure, assigning a unique number X to the audio track and partitioning the unique number X into N positions i, and N values v,, where i=1...N. For each position i of the number X, the method comprises generating a pseudorandom number R(i, v i ) based on the position i and the value v, at the position i, adding a new node [v i ,R(i,V i )] at level i in the database structure, if not already present in the database structure, adding an edge from the preceding node [V i-1 , R(i-1,V i-1 )] to the new node [v i ,R(i,V i )], generating, by using R(i, v i ,) as a seed, a set of random complex numbers C, inserting the set into a vector V, calculating the inverse Fourier transform of vector V, and adding the thereby obtained time domain function y(t) to the audio track.

    Abstract translation: 本发明涉及一种通过提供数据库结构对音轨进行水印处理的方法,将唯一号码X分配给音频轨道,并将唯一号码X划分成N个位置i和N个值v i,其中i = 1 .. .N。 对于数字X的每个位置i,该方法包括基于位置i处的位置i和值v生成伪随机数R(i,vi),添加新节点[vi,R(i,Vi) ]在数据库结构中的级别i,如果不存在于数据库结构中,则将前一节点[Vi-1,R(i-1,Vi-1)]的边添加到新节点[vi,R i,vi)],通过使用R(i,vi,)作为种子生成一组随机复数C,将集合插入到矢量V中,计算向量V的傅里叶逆变换, 获得时域函数y(t)到音轨。

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