Test Method (A Sample Clauses

Test Method (A. At least [four] measurements shall be made at every speed specified in paragraph 4. 3.1. The emitted sound shall be recorded during each passage of the vehicle between AA’ and BB’ for each microphone position. A correction for the Doppler effect may be applied, if needed. From each measurement sample a segment of +/- 1 second around the maximum sound level shall be cut out for further analysis. (Signal to Noise ratio analysis)