Information hiding for G.711 speech based on substitution of least significant bits and estimation of tolerable distortion

Akinori Ito, Shun'Ichiro Abe, Yôiti Suzuki

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

In this paper, we propose a novel data hiding technique for G.711-coded speech based on the LSB substitution method. The novel feature of the proposed method is that a low-bitrate encoder, G.726 AD-PCM, is used as a reference for deciding how many bits can be embedded in a sample. Experiments showed that the method outperformed the simple LSB substitution method and the selective embedding method proposed by Aoki. We achieved 4-kbit/s embedding with almost no subjective degradation of speech quality, and 10 kbit/s while maintaining good quality.

Original languageEnglish
Pages (from-to)1279-1286
Number of pages8
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
VolumeE93-A
Issue number7
DOIs
Publication statusPublished - 2010 Jul

Keywords

  • ADPCM
  • Data hiding
  • G.711
  • LSB substitution
  • Speech coding

ASJC Scopus subject areas

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering
  • Applied Mathematics

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