Title :
Simple and effective speech steganography in G.723.1 low-rate codes
Author :
Xu, Tingting ; Yang, Zhen
Author_Institution :
Inst. of Signal Process. & Transm., Nanjing Univ. of Posts & Telecommun., Nanjing, China
Abstract :
This paper presents a simple and effective steganography approach applied to 5.3 Kbps G.723.1 low-rate coded speech, based on analyzing the redundancy of coded parameters. Augmented identity matrix is used to reduce the modification to cover speech and enhance the imperceptibility of the mixed speech correspondingly. The scheme is with good transparency and low computational complexity, which is easy to be implemented in real applications.
Keywords :
computational complexity; matrix algebra; speech coding; steganography; G.723.1 low-rate codes; augmented identity matrix; bit rate 5.3 kbit/s; computational complexity; speech steganography; Bit rate; Computational complexity; Information analysis; Information security; Speech analysis; Speech codecs; Speech coding; Speech enhancement; Speech processing; Steganography; G.723.1; augmented identity matrix; information hiding; speech steganography;
Conference_Titel :
Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4856-2
Electronic_ISBN :
978-1-4244-5668-0
DOI :
10.1109/WCSP.2009.5371745
