A ray tracing computer model, NORMAL, has been developed for predicting the sound "eld in any shaped enclosed space without curved surfaces, including long enclosures of rectangular cross-section. The model was developed speci"cally as a basis for the modelling of speech intelligibility in undergrou
A computer model for predicting sound attenuation by barrier-buildings
โ Scribed by Selma Kurra
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 886 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0003-682X
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โฆ Synopsis
This paper describes a computer technique involving a procedure for finding the performance values within the shadow zone of a barrier-building of rectangular crosssection used as a point source. Reflections from the ground are also taken into account and a control operation is designed for different source and receiver locations related to the building. Consideration is given to the combined effects of wide barriers and finite size screens. The results are confirmed by several experimental measurements carried out in an anechoic room. Some examples of the application of the technique are given.
๐ SIMILAR VOLUMES
Most of the usual studies on a sound insulation system were introduced from the deterministic viewpoint in the frequency domain. This paper presents for the first time a fairly simplified identification method applicable to the actual situation of a sound insulation system under the introduction of