| Autor: |
Marco Conter, Reinhard Wehr, Sara Gasparoni, S. Breuss, Manfred Haider |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Applied Acoustics. 74:631-639 |
| ISSN: |
0003-682X |
| DOI: |
10.1016/j.apacoust.2012.11.006 |
| Popis: |
Loudspeaker characteristics can have an appreciable influence on the sound absorption properties obtained with CEN/TS 1793-5 [1] . Although sound sources with omnidirectional radiation properties are favored, these often hold the problem of long impulse responses due to their design potentially incorporating ports [2] . In this paper, the inverse filtering approach is applied to two different sound sources. It is shown that it is a valuable measure to reduce the influence of the loudspeaker characteristics on the obtained sound absorption values. Furthermore, an attempt is made to measure the absorption properties according to CEN/TS 1793-5 without the need for the subtraction procedure of a free-field measurement. Thereby, as long as only high frequencies are considered, reasonable values can be obtained. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect