A relatively simple quantified audio watermark can be extended for undergraduate graduation design. The three - level wavelet transform of the audio (wav) is embedded in the low-frequency components, including the embedded scale and the extraction of scale_tiqu, and two evaluation functions

Packet : 19854796watermarking.rar filelist
psnr.m
s.wav
scale.m
scale_tiqu.m
32.BMP
nc.m

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