Robust high capacity audio steganography using modulo operator

A secure audio steganography technique is introduced in this paper. Here modulo operator is used for hiding target string. The embedding as well as extracting process is of two steps which provides more robustness in this method. During preprocessing the hexadecimal equivalent of target string is calculated by taking four bits at a time. That increases capacity of cover media. Modulo operator is used during embedding and the adjustment is done in such a way so that the distortion becomes less which increases imperceptibility. The quality of experimental result is analyzed by SNR and also compared with standard LSB and HLLAS technique. Bits per sample is also calculated which shows more efficiency of the proposed technique.

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