Title :
Audio steganography by cepstrum modification
Author :
Gopalan, Kaliappan
Author_Institution :
Dept. of Electr. & Comput. Eng., Purdue Univ. Calumet, Hammond, IN, USA
Abstract :
A method of embedding information in the cepstral domain of a cover audio signal is described for audio steganography applications. The proposed technique combines the commonly employed psychoacoustical masking property of the human auditory system with the decorrelation property of the speech cepstrum, and achieves imperceptible embedding, large payload, and accurate data retrieval. Results of embedding using a clean and a noisy hot utterance show the embedded information is robust to additive noise and bandpass filtering.
Keywords :
audio coding; cepstral analysis; data encapsulation; decorrelation; additive noise robustness; audio steganography; bandpass filtering robustness; cepstral domain information embedding; cepstrum modification; clean hot utterance; data retrieval accuracy; human auditory system psychoacoustical masking property; information hiding; noisy hot utterance; payload size; speech cepstrum decorrelation property; Additive noise; Auditory system; Cepstral analysis; Cepstrum; Decorrelation; Humans; Payloads; Psychology; Speech coding; Steganography;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
Print_ISBN :
0-7803-8874-7
DOI :
10.1109/ICASSP.2005.1416345
