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REDUCTION METHODS
Different Purpose. Different Technology.

• Sound Deadening
Designed to enhance audio quality and minimize road noise and vibrations, sound deadening materials are commonly used in vehicles to create a more comfortable and enjoyable driving experience.

• Soundproofing
This method uses dense, airtight barriers to block sound from entering or leaving a space. Soundproofing is ideal for situations where preventing sound leakage is essential.

• Sound Absorption
Soft, porous materials are used to trap and convert sound waves, improving the acoustic quality within a space. This method is perfect for reducing echoes and reverberation, enhancing speech clarity.




NVH Stand for?
The three parts of NVH cover a range of sound indicators - how it is heard, how it is felt, and whether it is perceived to be pleasant or annoying.
NOISE :
The sound propagation caused by a specific object, such as the hum of an opening sunroof, an engine, a door being slammed, an HVAC system, or seat belt buckle clicks.
VIBRATION :
The oscillations that occur at a certain frequency. In a car, vibrations can be felt at different speeds through the steering wheel, seat, armrests, floor, and pedals.
HARSHNESS :
The subjective quality associated with noise and vibration. While both noise and vibration are quantifiable measurements, harshness deals with the discomfort of hearing unpleasant sounds. What is harsh to one person may not be harsh to another.













