Architectural Acoustics: Blending Sound Sources, Sound by Yoichi Ando PDF

By Yoichi Ando

ISBN-10: 0387983333

ISBN-13: 9780387983332

Continuing from easy thought to layout reviews of live performance and a number of function halls, the writer introduces a awesome seat choice procedure for the research of recent and latest halls, and proposes a diagnostic procedure for trying out the actual houses and calculating the mental attributes at any seat after a corridor is equipped. The booklet additionally provides a concept of subjective personal tastes, according to a version of the auditory cognitive process within the mind. Readers can therefore stick to the temporal and spatial values that could be linked to the left and correct cerebral hemispheres in hearing tune and speech, respectively, in a room. From the result of calculating subjective choice at each one seat, for instance, architects, musicians, and acoustical engineers thinking about the layout and use of live performance and multi-use halls may well be sure the easiest place to accomplish a definite kind of tune at the level, in addition to the easiest seats from which to pay attention.

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Additional resources for Architectural Acoustics: Blending Sound Sources, Sound Fields, and Listeners (AIP Series in Modern Acoustics and Signal Processing)

Example text

2T = 2 s; and (f) Music MotifK (Yamamoto), 2T = 5 s. 50, E, F. 18 3. 6. Minimum values of the effective duration of the ACF as a function of 2 T. ): Music Motif K (Yamamoto ). signals recorded in an anechoic chamber were analyzed (Taguti and Ando, 1997). 11). Of particular importance is how the played music fuses with the total sound field. The performance style is basically related to important subjective attributes, such as temporal factors of the sound field, and determines the most preferred initial time delay gap between the direct sound and the first reflection, and also the optimum subsequent reverberation time.

55° ± 20°). It is obvious that the sound arriving from the median plane ±OO makes the IACC greater. Sound arriving from ±90° in the horizontal plane is not always advantageous, because the similar "detour" paths around the head to both ears cannot decrease the IACC effectively, particularly for frequency ranges higher than 500 Hz. 3). 5. Effects of Sensation Level on the Preferred Delay Time of Reflections The purpose of this section is to understand the effects of the sensation level on subjective preference judgments upon a change of temporal factors.

3. subjects. 42A close to zero, then a lesser contribution of the factor X; on subjective preference is signified. The factor XI is given by the sound pressure level difference, measured by the A-weighted network, so that XI = 20 log P - 2010g[P]p. 11 ) P and [P]" being the sound pressure at a specific seat, and the most preferred sound pressure that may be assumed at a particular seat position in the room under investigation; (~). [MtJp X2 = log X3 = log ( -Tsub- ) X4 = lACe. 14) Thus, the scale values of preference have been formulated approximately in terms of the 3/2 power of the normalized objective parameters, expressed in the logarithm for the parameters, X I, X2.

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Architectural Acoustics: Blending Sound Sources, Sound Fields, and Listeners (AIP Series in Modern Acoustics and Signal Processing) by Yoichi Ando

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