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LSB-based Audio Steganography Method Based on Lifting Wavelet Transform in matlab

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sheenam

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1- First pocket LWT in fifth resolution level with Haar filter is performed on discrete samples and integer coefficients are resulted in this way.
2- Absolute threshold is calculated using these Temporal Signal coefficients.
3- The order of binary string is disordered by employing a random number generator and a secret key.
4- Considering the absolute threshold of stage 2, we replace the data string of stage 3 in LSBs of LWT.
5- By performing the inverse LWT, we convert the resulted coefficients into time domain, so as to get discrete time stego signal.

This is my final year project. I have done 1st and 2nd step. but not able to implement the 3rd step. please help me asap .
 

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