| Autor: |
Noral D. Stewart, Joseph F. Bridger |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
The Journal of the Acoustical Society of America. 148:2440-2440 |
| ISSN: |
0001-4966 |
| DOI: |
10.1121/1.5146731 |
| Popis: |
Difficult communication and noise in dining and social areas are common problems. Many are irritated by noisy restaurants and dining-room noise is the most common acoustical complaint in senior living facilities. The signal-to-noise ratio is the major factor in this and is influenced strongly by architectural design. Prior simplified signal-to-noise-ratio analyses with few variables indicate impracticably high amounts of sound absorption required for acceptable results. This analysis adds the benefit of table-top reflections and the ef- fects of the reverberant part of the signal (partially allotted to noise using known methods) and the direct part of the noise (using a closed-form approximation). It shows that the signal to noise ratio is strongly improved by table-top reflections and improved by 1. increased floor area per person (allowing more absorption and space between tables), 2. rooms with fewer people, 3. smaller table dimensions putting listeners closer to signal talkers, and 4. optimized discussion group size where possible to reduce the number of simultaneous talkers. Increased reverberation time due to higher ceilings is slightly detrimental. While a highly absorptive space is required, consideration of these other factors significantly reduces the required absorption to a more practical level. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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