Source Localization - Case Study
Summary
An evaluation of noise leakage in a vehicle cabin was conducted. Measurements were done with the Sonocat inside a moving car at an NVH test track. Figure 1 depicts the measuring rig (Sonocat device and software). Initially; discrete point measurements were executed to obtain preliminary acoustic data within the vehicle cabin and to familiarize with the acoustic environment. Subsequently, comprehensive scans were conducted across targeted interior regions suspected to contribute to noise leakage. Total time was approximately 30 minutes. Post-processing of the acquired data enabled the identification of key noise-emitting surfaces within the cabin.
Measurements and results
Figure 2 illustrates several labelled regions where acoustic measurements were conducted. These labels correspond to the scan identification numbers and descriptions of the respective scanned areas, which are associated with the measurement data files presented in Figure 3.
