Presentation 2000/7/18
Watermarking Technique for Audio Data by Frequency Hopping Method
Munetoshi IWAKIRI, Kineo MATSUI,
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Abstract(in English) This paper presents a digital watermark scheme for high quality audio data. It is consistituted with frequency hopping by random key sequence and embedding of watermark by the modified discrete cosine transform. The watermark signal is uniformly spread over the whole window frame when it is embedded to sound, and the watermarked noise is suppressed in very low level. Therefore, the sound quality is attained more than 40dB in the segmental SN ratio by our scheme. The frequency hopping scheme brings us a robust watermark for copyright protection, thus the watermark is proof against such attacks as bandpass filtering, amplification and lossy compression.
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Keyword(in English) Watermark / Digital Audio / Spread Spectrum / Frequency Hopping / MDCT
Paper # ISEC2000-28
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Committee ISEC
Conference Date 2000/7/18(1days)
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Registration To Information Security (ISEC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Watermarking Technique for Audio Data by Frequency Hopping Method
Sub Title (in English)
Keyword(1) Watermark
Keyword(2) Digital Audio
Keyword(3) Spread Spectrum
Keyword(4) Frequency Hopping
Keyword(5) MDCT
1st Author's Name Munetoshi IWAKIRI
1st Author's Affiliation Department of Computer Science, National Defense Academy()
2nd Author's Name Kineo MATSUI
2nd Author's Affiliation Department of Computer Science, National Defense Academy
Date 2000/7/18
Paper # ISEC2000-28
Volume (vol) vol.100
Number (no) 213
Page pp.pp.-
#Pages 8
Date of Issue