Research of MP3 Audio Digital Watermark Algorithm Based on Hash Values

摘要

This paper puts forwards large audio blind watermark algorithm based on MDCT and compression principles of MP3. Using Hash function, psychoacoustic model and MP3 coding/decoding to realize real-time distilling, and validating watermarking recessive, capability, real-timing and etc through experiment and analysis. Experiments show that the scheme can obtain be a higher embedded capacity to change the original audio signal smaller, has good stealth, integrity watermark extraction time is short, and can be completed synchronously during the audio play process.