Audio watermark enhanced by LDPC coding for air transmission

Yôiti Suzuki, Ryouichi Nishimura, Hao Tao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Citations (Scopus)

Abstract

A decrease in the watermark detection rate is a fatal problem in employing audio watermarks for applications in which a watermarked signal is transmitted through the air. The enforcement of watermarks using an error-correcting code is a solution to this problem. Low-density Parity Check (LDPC) coding is a recent error-correcting code; it shows good performance close to Shannon's limit. Therefore, in the present study, watermark detection rates when the watermarks were coded combined with and without LDPC coding were evaluated through computer simulations and experiments in a real room. The results showed that employing LDPC coding raised the watermark detection rate by around 15 percentage points for an additive white Gaussian noise and by around 20 points from around 60% to around 80% in an actual reverberation environment.

Original languageEnglish
Title of host publicationProceedings - 2006 International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2006
Pages23-26
Number of pages4
DOIs
Publication statusPublished - 2006 Dec 1
Event2006 International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2006 - Pasadena, CA, United States
Duration: 2006 Dec 182006 Dec 20

Publication series

NameProceedings - 2006 International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2006

Other

Other2006 International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2006
Country/TerritoryUnited States
CityPasadena, CA
Period06/12/1806/12/20

ASJC Scopus subject areas

  • Computer Science(all)

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