Study on inaudible information hiding technique for audio/speech signals
Project/Area Number |
23300070
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Perception information processing/Intelligent robotics
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Research Institution | Japan Advanced Institute of Science and Technology |
Principal Investigator |
UNOKI MASASHI 北陸先端科学技術大学院大学, 情報科学研究科, 准教授 (00343187)
|
Co-Investigator(Kenkyū-buntansha) |
MIYAUCHI Ryota 北陸先端科学技術大学院大学, 情報科学研究科, 助教 (30455852)
AIBA Eriko 電気通信大学, 大学院・情報システム学研究科, 助教 (40569761)
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Project Period (FY) |
2011-04-01 – 2014-03-31
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2011: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
|
Keywords | 情報ハイディング / 蝸牛遅延 / 知覚不可能性 / 頑健性 / 秘匿性 |
Research Abstract |
This study aimed to propose a scheme of digital audio/speech information hiding techniques by considering phase controlling based on psychoacoustical and physiological studies for human auditory perception. This study investigated to relationships between phase shifts based on cochlear delay and audibility and then realized methods for effectively controlling phase modulation based on cochlear delay for inaudibility. This study then proposed inaudible, blind, robust, and reversible digital-audio watermarking methods from these investigations. Information hiding for AM radio systems, tampering detection method for speech, speech watermarking based on formant enhancement, and scramble method for speech signal by random-bit shift of quantization were introduced as applications of the proposed scheme.
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Report
(4 results)
Research Products
(103 results)
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[Presentation] 音響信号に対する情報ハイディングの評価基準2012
Author(s)
西村明, 荻原昭夫, 鵜木祐史, 近藤和弘, 薗田光太郎, 岩村惠市, 立花隆輝
Organizer
日本音響学会2012年度春季研究発表会講演論文,3-1-24,pp.811-814
Place of Presentation
神奈川大学
Year and Date
2012-03-15
Related Report
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[Presentation] 音響信号に対する情報ハイディング技術の評価基準2012
Author(s)
西村明, 荻原昭夫, 鵜木祐史, 近藤和弘, 薗田光太郎, 岩村惠市, 立花隆輝
Organizer
Proc.SCIS 2012 (The 29th Symposium on Cryptography and Information Security), 3F1-4
Place of Presentation
Kanazawa, Japan
Year and Date
2012-02-01
Related Report
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