- the distance between the microphone and the center of the source
- the acoustic environment around the source (equivalent absorption area)
- the directivity coefficient
The sound power level is an intrinsic characterization of the noise radiated by the machine. It should preferably be used for simulation Vs. measurement
comparison. However, sound power level is not easy to measure and most of the time, the noise radiated by a machine is only measured in terms of sound pressure level using a microphone. Sound pressure level obtained with Manatee can be used by acoustic engineers and NVH test engineers to compare simulation results with measurements.