ITCC '00 Proceedings of the The International Conference on Information Technology: Coding and Computing (ITCC'00)
Perceptual cryptography on MPEG Layer III bit-streams
IEEE Transactions on Consumer Electronics
Robust audio identification for MP3 popular music
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval
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This paper proposes an MP3 watermarking method that is applicable to a mobile terminal with limited computational resources. Considering that the embedded information is copyright information and metadata, which should be extracted before playing back, the watermark detection process should be executed quickly. However, conventional methods cannot detect a digital watermark at high speed. Thus, this paper proposes that scalefactor values in MP3 data be altered so as not to spoil audio quality. Evaluation tests show that the proposed method is capable of embedding 3bits/frame information and detecting at very high speed without degrading audio quality. Finally, this paper describes an application example of our proposal for authentication with a digital signature.