2005 IEEE International Conference on Multimedia and Expo
Hidden auxiliary media channels in audio signals by perceptually insignificant component replacement
Amsterdam, Netherlands
July 06-July 06
ISBN: 0-7803-9331-7
T.D. Jackson, Dept. of Comput.&Math., Manchester Metropolitan Univ., UK
F.F. Li, Dept. of Comput.&Math., Manchester Metropolitan Univ., UK
K. Yates, Dept. of Comput.&Math., Manchester Metropolitan Univ., UK
This paper proposes a method for the formation of an auxiliary media channel within a host signal. Using a psychoacoustic frequency masking model, perceptually insignificant subband components of the host audio signal are identified and removed. The auxiliary channel data are placed in the empty subbands in the host signal and scaled to a level below the audible threshold. An implementation is given along with results suggesting that the proposed method can effectively hide an auxiliary media channel in a normal audio signal without degrading the perceived sound quality.
Index Terms:
sound quality perception, auxiliary media channel formation, psychoacoustic frequency masking model, subband component, host audio signal
Citation:
T.D. Jackson, F.F. Li, K. Yates, "Hidden auxiliary media channels in audio signals by perceptually insignificant component replacement," icme, pp.4 pp., 2005 IEEE International Conference on Multimedia and Expo, 2005
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb