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Decay Characteristics of Vowel Cavities Recorded Inside and Outside the Mouth

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Using a spark discharge for the excitation of the vowel cavities, first, it was examined how the resonance data change at the open and at the closed glottis. Experiments give lower values for both, resonance frequency and logarithmic decrement at the closed glottis. The width of the resonance curves are in this case wider than generally published in the literature.

In the second part of experiments the frequency characteristics of the radiation resistance of the mouth was determined. The data achieved by a direct measuring method are in good agreement with the generally used 6 dB/oct. slope of the frequency dependence.
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Document Type: Research Article

Publication date: October 1, 1975

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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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