International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 116 - Number 5 |
Year of Publication: 2015 |
Authors: Tamer Rabie, Driss Guerchi |
10.5120/20329-2547 |
Tamer Rabie, Driss Guerchi . Spectral Magnitude Speech Steganography. International Journal of Computer Applications. 116, 5 ( April 2015), 1-6. DOI=10.5120/20329-2547
This paper presents a speech-hiding framework that exploits spectral properties of the Fourier magnitude and phase of digital speech signals for the purpose of hiding secret speech messages inside other speech signals for secure transmissions over unsecured networks. The technique used exploits low-pass spectral properties of the speech magnitude spectrum to embed a secret speech signal in the low-amplitude-high-frequency regions of the host speech signal's spectral magnitude. Experimental evaluations on real male and female voice segments show that our technique is capable of hiding one speech message inside another host speech segment to produce a stego speech segment that is indistinguishable from the original host speech, while being able to extract the hidden speech message without any perceived degradations in quality.