Abstract
The technology of embedding image data into the audio signal and additive audio watermarking algorithm based on SNR to determine a scaling parameter was researched. The audio based on DWT. The intensity of embedded watermarks on the original audio signal is modified by adaptively modulation of the scaling parameter. Experimental result demonstrate that the watermark is inaudible and this algorithm is robust to many operations of digital audio signal processing, such as, resampling, lowpass filter and so on. The extracted watermark image quality is shown by considering normalize correlation (NC) value with a suitable scaling parameter for embedding.
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