LSB Based Audio Steganography Based On Text Compression

Compression algorithm is what reduces the redundancy of data representation and decreases the data storage capacity. Data compression plays a vital role in reducing the communication cost making use of available bandwidth. The compressed data from the security aspect is transmitted through internet. It is, however very much vulnerable to a multitude of attacks. To propose a new dictionary based text compression technique for ASCII texts for the purpose of obtaining good performance on various document sizes. Dictionary based compression bits are hidden into the Lsb bit of audio signals and to calculate the signal to noise ratio (SNR). This audio Steganography is conducted for various compression algorithms with dictionary based compression. Audio Steganography based dictionary compression achieves better value of signal to noise ratio (SNR).