Optimized measurement method for sound reduction for partially open windows
Project title: Optimized measurement method for sound reduction for partially open windows
Description:
| The methods used today for lab measurements of windows (ISO 10140 series) are carried out by mounting the window in an opening between two measuring rooms, a transmitting and a receiving room. The methods assume a diffuse sound field in the rooms, i.e. the sound comes from all directions, which is optimal when the windows are closed. For simple partially open windows, this measurement method will achieve a conservative value that does not take into account either the location or the geometry of the window. In the project, we will investigate two alternative measurement methods; 1) where the transmitter space is physically modified, and 2) using signal processing to remove unwanted acoustic reflections. If the alternative methods investigated for a number of different window constructions turn out to give a more accurate picture, the aim is to have these methods standardized. The project will be a central contribution to clarifying this and will form part of a subsequent standardization process that lies outside the proposed project. |
Topic related webinar (May 20, 2022): click here
Duration:
Start: 1 February 2023
End: 1 February 2024
Funding: 350.000 DKK
Lead Research:
Lars Sommer Søndergaard, Senior Specialist Acoustics, Noise and Vibrations
Danish Sound Cluster professional work area:
With the support of the Danish Agency for Education and Research
Danish Sound Cluster contact person:
Project Manager Tinne Midtgaard, tm@danishsound.org – tel. 3049 7846
