Noise, Vibration and Harshness (NVH) — 2016 workshop reference 77

A resonance from flat surfaces, such as safety belt webbing or door trim panels.

Squeak:

A high-pitched transient sound, similar to rubbing fingers against a clean window.

Squeal:

A long-duration, high-pitched noise.

Tap:

A light, rhythmic or intermittent hammering sound, similar to tapping a pencil on a table edge.

Thump:

A dull beat caused by 2 items striking together.

Tick:

A rhythmic tap, similar to a clock noise.

Tip-In-Moan:

A light moaning noise heard during light vehicle acceleration, usually between 40.2 kmh (25 mph) - 104.6 kmh (65 mph).

Transient:

A noise or vibration that is momentary, a short duration.

Vibration:

Any motion, shaking or trembling, that can be felt or seen when an object moves back and forth or up and down.

Whine:

A constant, high-pitched noise. Also described as a screech.

Whistle:

High-pitched noise with a very narrow frequency band. Examples of whistle noises are a turbocharger or air flow around an antenna.

Wind Noise:

Any noise caused by air movement in, out or around the vehicle.

Source reference 77

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.