Abstract
In the Digitalized world, the problem exists in transmitting and concealing highly secured and important information. This results in developing better technique/algorithm for the secure and safe transmission of information with data hiding. Here comes our study in Audio Steganography. With the existing scenario we say that Differential Pulse Code Modulation (DPCM) is better than Pulse Code Modulation (PCM). If Steganography is implemented in the audio signal, the above result is contrary. We focus on the audio steganography for analyzing the behavior for different modulation schemes. The result is controversial (i.e.) PCM is better option for transmitting an encoded audio signal with text information. This result has not been proved yet in terms of coding. The coding is developed in MATLAB. In the algorithm, using the scattering method, the encoded text is embedded into digitized audio signal. Here comes the case study of each method of modulation, ultimately proving that PCM is better method compared to Differential PCM (DPCM).
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