Authentication Algorithm For Copyright Of The Digital Music Based On Zero Watermark

As tape, CD and other traditional recording industry gradually withdrew from the historical stage, a large number of digital musics represented by mp3 and wav began spreading over the Internet. But due to the openness of the network and digital works can be easily copyed, the current Internet is full of piracy digital music works。Copyright protection for digital music works and the test puts forward a realistic and urgent demand. In order to remedy the situation,this paper discusses a digital music copyright authentication based on zero audio watermark algorithm.The main research work performance in the following sections:(1)Based on the research and analysis of digital music works, we designed a digital music copyright authentication scheme based on zero audio watermarking. The shceme contains pretreatment, eigenvalue extraction, watermark information processing, parity information and timestamp information,and copyright validation.(2)Based on the study of existing audio pretreatment techniques and the feature of digital music,we adopted the resampling technology, endpoint detection technology and the information frame processing technology to process the audios, and we designed the algorithms to implement these techniques.(3) For the extraction of characteristic value,we designed a audio eigenvalue extraction model.Then we designed the algorithms for the discrete wavelet transform and Lagrange interpolation.(4) For the watermark information,we introduced QR code technology to manage the watermark information.Then we designed the algorithms for the generation and recognition of watermark.(5)For the check information and time stamp,we designed the check information and time stamp model.In this model,we combine feature information and the watermark information to generate check information.Then we designed the algorithms for this model.(6)For the copyright authentication part, we combined feature information and the check information to generate watermark information,then we read this information to verify the copyright.(7) We did simulation experiment to verify the algorithm’s perceptual, reliability and robustness.