| Sound field in the room impulse response measurement, the impulse response of the application of reverse integration of modern digital processing technology, easy to use, fast and advantages. Impulse response is a closed space sound field simulation technology important work. For each part of the impulse response characteristics, changing only the use of a model to simulate the entire impulse response of a traditional practice, the ray tracing method, the virtual source method and statistical methods to combine segments of the impulse response simulation study. This study analysis a different type of space and compare Figure impulse response of. This study proposes a ten kinds of analytic impulse response graph Assessment Act, and the practical application of the concert hall space type validation the ten evaluation method of the detailed characteristics of the indoor sound field sound analytical.The concrete results of this study are as follows:(A) In this study, the type of space divided into (1) the shape of space (2) space volume (3) Space Room surface area of the three parts to explore a different type of space and compare each measuring point of the impulse response graph:(1) The shape of the space, the surface area of the same volume of space with room under the same circumstances, the results change ceiling moldings, the indoor space auditorium in the rear time delay difference for the central position of6%and rear13%, more significant changes.(2) space volume, shape chamber surface area of the same space in the same case, the results relatively small volume of space, the time delay difference between the more significant changes than rectangular and fan-shaped space. (B) This study tested the concert hall space, ten parse indoor sound field through the present study, the distribution of response graph for indoor sound field at the pulse points, find out the lack of indoor sound as subsequent recommendations to improve the situation indoor decoration materials of the sound field. |
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