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Study of the Relation Between Micro-Speaker and Ducted Speaker-System

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In this study, the property and the structure of a micro-speaker had been firstly shown to be treated as a ducted speaker-system, which consisted of the unit and the ducted enclosure. With the decrease of total hole area, the resonance frequency of the micro-speaker was decreased due to increasing the stiffness or reducing the compliance. The behavior of resonance frequency relative to the total hole area exactly agreed with that of the square root of compliance. With decreasing the total hole area, the effective chamber volume was increased, but the reference sound pressure level was exponentially reduced in the low and middle frequency range.
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Document Type: Research Article

Publication date: July 1, 2008

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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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