Read e-book online Acoustics of Wood (Springer Series in Wood Science) PDF

By Voichita Bucur

ISBN-10: 3540261230

ISBN-13: 9783540261230

ISBN-10: 3540305947

ISBN-13: 9783540305941

I've got came across this a superb ebook for knowing a few features of wooden utilized in musical device making. It confirms some of the conclusions reached from useful adventure. I simply want there has been a bit extra that was once appropriate to device making.

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5. Section through a timber platform floating floor. 5-mm plasterboard. 3 Wood and the Acoustics of Concert Halls There are many cases of the improvement of room acoustics when wood material is used. Moreover, it has been recognized that the acoustical quality of rooms is a matter of subjective judgement. Even today, the design and construction of a concert hall can be defined as «an art» in the classical meaning of the word, despite the fact that scientific knowledge in this field is advanced (Muller 1986).

For example, plywood and particleboard provide sound absorption in the lower-frequency region of the audible spectrum (<500 Hz) and porous artificial materials are remarkably efficient absorbents at mid and high frequencies (2,000−4,000 Hz), as cited by Beranek (1960). This chapter attempts to cover the following points: the influence of the structural organization of wood on the sound absorption characteristics, wood-based materials as sound insulators, and some aspects related to the utilization of wood and wood-based composites in room acoustics.

Wooden linings lead to a bright sound because of low-frequency absorption. Other systems such as Helmholtz resonators and thin gypsum plates can be used for this purpose, with more or less success. ) and the volume of the air. » The subjective preference of the sound in concert halls is related to the psychoacoustic parameters, as defined by Ando (1985): the preferred initial-time-delay gap, the preferred listening level, the preferred reverberation time subsequent to the arrival of early reflections, and the magnitude of the preferred measured interaural cross correlation.

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Acoustics of Wood (Springer Series in Wood Science) by Voichita Bucur

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