Presentation 2004/1/22
A Study on Methods to Enhance Speech Superposing on MRI Macine Noise
Naoto MATSUMOTO, Kensaku FUJII, Naoto SASAOKA, Yoshio ITOH, Yutaka FUKUI,
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Abstract(in English) In this report, examination about the method of emphasizing the sound which the noise which the MRI equipment used for medical inspection etc. emits superimposed is performed. The noise of a very long cycle is included in the noise which MRI equipment emits, and the peculiar periodicity noise has barred the telephone call to a doctor from a patient. Then, ALE is used in order to oppress the periodicity noise. This is a system which sets only a periodicity ingredient as a prediction target by prefacing a delay element in an adaptation filter. Therefore, if this system is used, the periodicity ingredient of MRI equipment noise will be oppressed, and it is thought possible to emphasize a sound. Moreover, by this report, the cycle of the noise is detected automatically and the technique of performing noise oppression is also examined.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) linear prediction / noise re-synthesis / MRI / amount of noise reduction / step size / ALE
Paper # EA2003-151
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Committee EA
Conference Date 2004/1/22(1days)
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Registration To Engineering Acoustics (EA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Methods to Enhance Speech Superposing on MRI Macine Noise
Sub Title (in English)
Keyword(1) linear prediction
Keyword(2) noise re-synthesis
Keyword(3) MRI
Keyword(4) amount of noise reduction
Keyword(5) step size
Keyword(6) ALE
1st Author's Name Naoto MATSUMOTO
1st Author's Affiliation Faculty of Engineering, Himeji Institute of Technology()
2nd Author's Name Kensaku FUJII
2nd Author's Affiliation Faculty of Engineering, Himeji Institute of Technology
3rd Author's Name Naoto SASAOKA
3rd Author's Affiliation Faculty of Engineering, Tottori University
4th Author's Name Yoshio ITOH
4th Author's Affiliation Faculty of Engineering, Tottori University
5th Author's Name Yutaka FUKUI
5th Author's Affiliation Faculty of Engineering, Tottori University
Date 2004/1/22
Paper # EA2003-151
Volume (vol) vol.103
Number (no) 609
Page pp.pp.-
#Pages 6
Date of Issue