Window Impedance of Recorder-Like Instruments
Sound production in recorder-like instruments occurs near an open end of the resonator. The impedance of this opening, named window and specific to flute-like instruments, acts both on the passive resonances and on the active behaviour. The geometry of the window is characterized by the presence of an edge needed for the sound source. This edge induces a significant enlargement of the section of the chimney associated with this opening. This study proposes a model of the frequency response of the window of recorder-like instruments inspired by previous works on open side holes. Predictions from this model are compared with measurements of a hand made recorder and to finite element simulations. Multiple geometrical conditions are simulated via finite elements and compared with the proposed model.
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Document Type: Research Article
Publication date: 2017-01-01
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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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