Noise, vibration, and harshness

Noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is the study and modification of the noise and vibration characteristics of vehicles, particularly cars and trucks. While noise and vibration can be readily measured, harshness is a subjective quality, and is measured either via 'jury' evaluations, or with analytical tools that can provide results reflecting human subjective impressions. These latter tools belong to the field known as 'psychoacoustics.' Noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is the study and modification of the noise and vibration characteristics of vehicles, particularly cars and trucks. While noise and vibration can be readily measured, harshness is a subjective quality, and is measured either via 'jury' evaluations, or with analytical tools that can provide results reflecting human subjective impressions. These latter tools belong to the field known as 'psychoacoustics.'