Multi level high capacity data hiding technique for stereo audio

Alexander I. Iliev, Michael S. Scordilis

Research output: Contribution to journalConference article

Abstract

This novel multi level encoding technique is using psychoacoustical principles of binaural hearing in the phase spectrum of stereo signals. A frequency-dependent threshold of the interaural phase difference is computed, and then used to determine locations suitable for data insertion. Once established, the threshold is divided into several sublevels, each carrying few bits of data. The disturbance in the phase is done in a fashion that mimics the original signal thus introducing little noise. Listening tests have been performed to confirm that using this method results in a signal indistinguishable from the original audio. This technique provides payload of over 105 kb/s for CD-quality audio.

Original languageEnglish (US)
Pages (from-to)1793-1797
Number of pages5
JournalConference Record - Asilomar Conference on Signals, Systems and Computers
Volume2
StatePublished - Dec 1 2004
EventConference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: Nov 7 2004Nov 10 2004

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

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