Audio signal watermark design to audio signal as the carrier, the carrier signal is embedded in the audio signal. Realize audio signal watermark. The transform domain wavelet transform (DWT) technology, the audio signal wavelet transform to extract the low frequency component, and then the watermark is embedded in the audio signal of low frequency. Experiments on first in MATLAB, the simulation experiment and by adding noise and filter and so on interference to test the algorithm the transparency and robustness, and by using the C language were tested, and the Some modification, such as join timer and interrupt handling and join buffer in DSP board to add watermark audio sound broadcast.

Audio watermarking internship report.pdf

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