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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/10730

Title: Privacy protection for speech based on concepts of auditory scene analysis
Authors: AKAGI, Masato
IRIE, Yoshihiro
Issue Date: 2012-08-22
Publisher: Institute of Noise Control Engineering of the USA
Magazine name: Proc. INTERNOISE 2012
Start page: 485
Abstract: There are many sounds in the environment in which we live. In order to obtain the relevant information from a particular sound, we need to identify a target sound and extract the information from that. Being able to pinpoint a target sound from among two or more sounds is called the “cocktail party effect”. The main component of this effect is auditory scene analysis (ASA), which, if it is working well, enables us to focus on something as soft as a whisper uttered several meters ahead. However, there is also the possibility that private conversations—e.g., those that take place at a bank, hospital outpatient department, pharmacy, etc.— may be overheard by another person. In this paper, we propose a method for protecting speech based on circumventing ASA. The proposed method renders the content of an utterance indistinct by generating an acoustical environment in which ASA does not work effectively. It does this by using an information masking technique to reproduce a sound that obscures the phonemes bearing the language semantic information of the conversations.
Rights: Akagi, M. and Irie, Y. (2012/08/22). “Privacy protection for speech based on concepts of auditory scene analysis,” Proc. INTERNOISE2012, New York, 485.
URI: http://hdl.handle.net/10119/10730
Material Type: publisher
Appears in Collections:b11-1. 会議発表論文・発表資料 (Conference Papers)

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