Perceptually hidden data transmission over audio signals

Author

Prandoni, Paolo ; Vetterli, Martin

Author_Institution

Ecole Polytech. Fed. de Lausanne, Switzerland

Volume

6

fYear

1998

fDate

12-15 May 1998

Firstpage

3665

Abstract

A data transmission framework is proposed to embed digital data into an audio signal in a perceptually undetectable or almost undetectable way. The resulting signal can be reproduced as is with no loss of acoustic quality; the embedded data can be exactly retrieved at the decoder. The transmission process exploits the perceptual redundancy of the audio signal to conceal the acoustic impact of the embedded data; encoding of side information is used to inform the receiver of the time-varying structure of the masking properties of the audio signal. A sample implementation is described with a throughput of the order of 30 kbit/sec over CD-quality audio

Keywords

audio coding; audio discs; audio signals; data communication; decoding; hearing; 30 kbit/s; CD-quality audio; acoustic quality; audio coding; audio signals; decoder; digital data; embedded data; masking properties; multichannel signalling; perceptual redundancy; perceptually hidden data transmission; psychoacoustic modeling; receiver; side information encoding; signal reproduction; throughput; time-varying structure; Data communication; Decoding; Frequency; Humans; Information retrieval; Noise shaping; Psychoacoustic models; Signal processing; Transform coding; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on

Conference_Location

Seattle, WA

ISSN

1520-6149

Print_ISBN

0-7803-4428-6

Type

conf

DOI

10.1109/ICASSP.1998.679678

Filename

679678