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Effect of Sound Reproduction System and Listening Condition on Subjective Chinese Speech Intelligibility Assessment

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Speech intelligibility (SI) is an important index for design of speech purpose hall. Subjective speech intelligibility assessment is the ultimate criterion. In the present work, by using the loudspeaker and the earphone reproduction systems, the auralization technique, instead of sitting in hall, is applied to obtain the speech intelligibility scores under the diotic and the dichotic listening conditions, no matter the hall is built already or not. The results show that there is no difference between the speech intelligibility scores using the both sound reproduction systems. Sound reproduction systems have no significant effect on the speech intelligibility scores. However, the room acoustical characteristic in listening position and the listening condition have significant effect on the speech intelligibility scores. The smaller C50(AVG) is at listening position, the more the difference between the results under the both listening conditions. Speech intelligibility scores under the dichotic listening condition are higher than that under the diotic listening condition at these 28 listening positions.
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Document Type: Research Article

Publication date: January 1, 2006

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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