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To analyze the robustness performance of direct sequence spread spectrum (DSSS) based audio watermarking algorithm theoretically, the fundamental principle of spread spectrum watermarking is analyzed firstly. The communication model of DSSS-based audio watermarking system is designed according to the spread spectrum communication theory. The interrelation between bit error rate (BER) and watermark...
The application of AU (Adobe Audition) in the teaching and learning of USPCG (Undergraduate Signal Processing Course Group) is explored. To improve the teaching effects of USPCG, the courses' characteristics are analyzed, and then an innovative aspect that the Adobe Audition can be used as a teaching software tool in USPCG is proposed. According to the functions and advantages of AU, its roles in...
Quantization index modulation is one of the popular digital audio watermarking algorithms. The principle of the algorithm is analyzed firstly, and then embedding and extracting formulas of less computational complexity are given. The performances of algorithm based on DFT (discrete Fourier transform) coefficients quantization are mainly researched, and its disadvantages are pointed out. Firstly, the...
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