Title :
Audio Data Hiding with High Data Rates Based on Intmdct
Author :
Geiger, Ralf ; Yokotani, Yoshikazu ; Schuller, Gerald
Author_Institution :
Fraunhofer IIS, Erlangen
Abstract :
This paper describes high data-rate audio data hiding using the IntMDCT. The IntMDCT is an integer approximation of the MDCT with perfect reconstruction. Based on this transform, we describe a straight-forward way to embed data and extract it in a bit-exact manner while perceptual transparency is maintained. Since the IntMDCT spectrum can be used to obtain a closer approximation of the masking threshold compared to time domain approaches, it is possible to achieve higher data rates. In a simple experimental implementation, we found we could embed data at rates up to about 140 kb/s without introducing audible distortions
Keywords :
approximation theory; audio coding; data encapsulation; discrete cosine transforms; IntMDCT; audio data hiding; integer approximation; masking threshold; perceptual transparency; Audio coding; Data encapsulation; Data mining; Discrete cosine transforms; Humans; Image reconstruction; MPEG 4 Standard; Masking threshold; Quantization; Watermarking;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location :
Toulouse
Print_ISBN :
1-4244-0469-X
DOI :
10.1109/ICASSP.2006.1661248