The engine is the primary source of noise in an automobile, due to the combustion process and mechanical vibrations.

A muffler is designed to reduce noise by dissipating sound waves and reducing their amplitude.

Fiberglass is a lightweight and effective material for soundproofing, as it absorbs and dissipates sound waves.

Vibration analysis is conducted to identify and mitigate excessive vibrations that can affect ride comfort and cause discomfort to passengers.

Reflection is the phenomenon of sound waves bouncing off surfaces, causing them to change direction.

Active Noise Cancellation uses microphones and speakers to generate sound waves that cancel out unwanted noise.

The engine is the primary source of noise in an aircraft, due to the combustion process and mechanical vibrations.

A nacelle is designed to reduce noise by enclosing the engine and providing soundproofing.

Fiberglass is a lightweight and effective material for soundproofing in aircraft, as it absorbs and dissipates sound waves.

Vibration analysis is conducted to identify and mitigate excessive vibrations that can affect flight stability and compromise safety.

Diffraction is the phenomenon of sound waves bending around obstacles, causing them to spread out.

A muffler is a passive noise control system that reduces noise by dissipating sound waves and reducing their amplitude.

An acoustic liner is designed to reduce noise by absorbing sound waves and preventing them from propagating.

Fiberglass is a lightweight and effective material for acoustic liners, as it absorbs sound waves and dissipates their energy.

Vibration isolation is used to reduce noise and vibration transmission by isolating vibrating components from the surrounding structure.