Spread Spectrum Audio Watermarking Matlab Code

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spread spectrum watermarking - error in the code

https://www.mathworks.com/matlabcentral/answers/293619-spread-spectrum-watermarking-error-in-the-code

You are then trying to convert that numeric vector to decimal as if it were suitable input for bin2dec, but bin2dec needs '0' and '1'. Solution: data_b = dec2bin (data) - '0'; Now the result will be numeric 0 and numeric 1. Then later, r = bin2dec ( char (e' + '0')); This converts the numeric 0 and numeric 1 to '0' and '1'.

audio-watermarking · GitHub Topics · GitHub

https://github.com/topics/audio-watermarking

In this project, a simple watermarking system for spread spectrum audio is developed using the FFT transformation to insert the data into the signal host. The system is designed to resist the problem of desynchronization using synchronization codes. signal-processing signal sistema insert watermark audio-processing watermarking audio ...

spread spectrum watermarking for hiding data on a image

https://www.mathworks.com/matlabcentral/answers/292313-spread-spectrum-watermarking-for-hiding-data-on-a-image

i have written the code for spreading a water,ark on a image, based on spread spectrum watermarking. i am not getting the recovered watermark properly. since the programe is running succesfully and not showing any errors, i cudnt find out reason for not getting the output. please help me to rewrite the same. program is shown below.

Spread Spectrum Modulation Techniques using MATLAB

https://ijirt.org/master/publishedpaper/IJIRT142537_PAPER.pdf

two spread spectrum modulation techniques, Direct Sequence Spread Spectrum (DSSS) as well as Frequency Hop Spread Spectrum (FHSS) was done and their performance studied. The simulation process is done using MATLAB version 7.6.0 . doesn’t make use of the same code in t Index Terms- Bandwidth, Signal-to-Noise Ratio, DSSS, FHSS, Spectrum

Spread-spectrum watermarking of audio signals - …

https://www.microsoft.com/en-us/research/wp-content/uploads/2016/02/KirovskiMalvarTSPApr03.pdf

KIROVSKI AND MALVAR: SPREAD-SPECTRUM WATERMARKING OF AUDIO SIGNALS 1021 In order to investigate the security of SS WMs, we explore the robustness of such a technology with respect to watermark estimation attacks [2]. To launch that attack, an adversary is assumed to know all the details of the WM codec, except the hidden secret.

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