Titlebook: Room Acoustical Fields; Fridolin Mechel Book 2013 Springer-Verlag Berlin Heidelberg 2013 Absorption coefficient.Convex rooms.Corner Source

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Book 2013aracter of acoustical fields.  The presented higher methods include the concepts of “Mirror Point Sources” and “Corner sources which allow for an excellent approximation of complex room geometries and even equipped rooms. .In contrast to classical description, this book extends the theory of sound f

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Mirror Sources in Convex Rooms,iously, the mirror source method in its classical form is not suited for application in convex rooms in general because it cannot model the scattered field at convex corners. Therefore we now are leaving the range of application of the mirror source method, strictly speaking, at least in its classical form.

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Book 2013llent approximation of complex room geometries and even equipped rooms. .In contrast to classical description, this book extends the theory of sound fields describing them by their complex sound pressure and the particle velocity. This approach enables accurate descriptions of interference and absorption phenomena.

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Sound Sources,elpful to suppose sound sources which are simple with respect to their temporal and/or spectral behavior and/or angular distribution. The more complex sound sources shall be composed when required with elementary sources.

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Cubic Room,c room is quasi “the mother of the theoretical room acoustics”. It is surprising that even in the classical literature (e.g. [2, 6, 7, 15]) this solution is based on a striking contradiction. In such examples the room is hard on all sides. According to these solutions, sound fields only exist at dis

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Zone Solution in a Cube,ection (as compared with other walls and sound directions). In a first step the room is non-reflecting for sound waves in –.-direction, i.e.the room is either unlimited in –.-direction or the wall in that direction is ideally matched (which is science fiction !). This yields an acoustical . (Fig. 7.

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Field in a Rectangular Reverberant Room, sample in the room. Many reverberant rooms have oblique-angled walls and often there are so-called . (scatterers) distributed in the room; both measures shall increase the . of the sound field in the room, i.e. the equipartition of intensity and direction of component sound waves which make up the

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