The typical approach to steganography is to compress\nthe covert data in order to limit its size, which is reasonable\nin the context of a limited steganographic bandwidth.\nTran coding steganography (Tran Steg) is a new IP telephony\nsteganographic method that was recently proposed that offers\nhigh steganographic bandwidth while retaining good voice\nquality. In Tran Steg, compression of the overt data is used\nto make space for the steganogram. In this paper we focus\non analyzing the influence of the selection of speech codecs\non hidden transmission performance, that is, which codecs\nwould be the most advantageous ones for Tran Steg. Therefore,\nby considering the codecs which are currently most\npopular for IP telephony we aim to find out which codecs\nshould be chosen for transcoding to minimize the negative\ninfluence on voice quality while maximizing the obtained\nsteganographic bandwidth.
Loading....