Presentation 2005-03-14
Digital Watermarks for audio signals based on amplitude and phase coding
Naoyuki YAJIMA, Kunio OISHI,
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Abstract(in English) We propose a new digital watermark method with the phase spectrum for digital music. Because, aural of human is hebetude to the change of the phase. And, it has been thought that the deterioration in music quality is reduced by "octave similarity". Moreover, we let frequency band change by PN (Pseudo Noise) sequence. Simulation results showed that proposed method has high secret and high tolerance against MP3(MPEG1 Audio Layer 3). Furthemore, we introduce band elimination filter (BEF) into the proposed method. The effectiveness of the procedure is shown for protecting embedded information against MP3.
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Keyword(in English) Digital Watermaks / FFT / Octave similarity / Music / Sound / Phase spectrum cording / PN sequence
Paper # CAS2004-91,SIP2004-134,CS2004-227
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Committee CS
Conference Date 2005/3/7(1days)
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Registration To Communication Systems (CS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Digital Watermarks for audio signals based on amplitude and phase coding
Sub Title (in English)
Keyword(1) Digital Watermaks
Keyword(2) FFT
Keyword(3) Octave similarity
Keyword(4) Music
Keyword(5) Sound
Keyword(6) Phase spectrum cording
Keyword(7) PN sequence
1st Author's Name Naoyuki YAJIMA
1st Author's Affiliation Graduate School of System Electronics, Tokyo University of Technology()
2nd Author's Name Kunio OISHI
2nd Author's Affiliation School of Cumputer Science, Tokyo University of Technology
Date 2005-03-14
Paper # CAS2004-91,SIP2004-134,CS2004-227
Volume (vol) vol.104
Number (no) 720
Page pp.pp.-
#Pages 6
Date of Issue