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During a pass-by noise test, the effect of the relative speed of the vehicle is translated into the Doppler phenomenon, causing positive (approaching) or negative (receding) frequency shifts (typically 2 to 5 %) in the signal received by both microphones, which are positioned at both sides of the test track at a certain distance from the center line. These experimental realities can lead to considerable errors for order tracking (used to determine engine/powertrain contributions) and coherence analysis. A Doppler correction process has been developed to deal with these effects. The correction is based on a resampling and interpolation of the target microphone time records, using recorded information on the instantaneous vehicle position measured by means of a radar. With the classical analysis tools, the Doppler correction process can improve result interpretation.