If not correctly addressed, power generators may become a significant source of harmful and distracting noise. Between the sound of the diesel or gas engine, cooling fans, turbo whine, and exhaust breakout, the amount of noise emitted by power generating equipment can be extreme. Without mitigation, high levels of sound and vibration eventually cause damage to equipment and result in injuries to personnel in the form of direct hearing damage and indirect accidents caused by miscommunication.

Understanding how to reduce generator noise requires a thorough comprehension of sound waves and how they behave. For more than 40 years, Technicon Acoustics has been a premier provider of noise control solutions for portable and standby power generators, including:

  • Gensets
  • Portable generators
  • Standby generators
  • Inverter generators

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Technicon has the technology and experience you need to reduce your power generator noise.

Types of Power Generator Noise to Reduce

Determining the way that sound and vibration travel from a generator allows experts to choose the best options for noise mitigation. Noise from generator equipment is typically classified as structure-borne or airborne, depending on the way it is transmitted.

Structure-Borne Noise

Power Generator Outside

Structure-borne sound consists of vibrations transmitted from the generator to the surrounding area. As they travel through solid material, these vibrations create audible levels of noise that can be harmful and distracting. To reduce structure-borne noise, experts will typically apply damping materials around the generator equipment to reduce and withstand vibration.

Airborne Noise

Airborne noise, as the name implies, consists of sound waves generated through vibration that travel through the air. Generator noise reduction enclosures are an excellent way to reduce the amount of airborne noise emitted by power generation equipment, but there is more to it.

In an enclosure, acoustical absorbers and barriers line the interior to prevent line-of-sight noise transmission via straight air paths. All doors and access panels in a noise reduction enclosure are adequately sealed and fitted with gaskets to prevent leakage, as even a 10% untreated surface area can reduce sound treatment effectiveness by up to 50%. Specially engineered power generation equipment can also reduce unwanted noise through the installation of adequate seals and redirection of airflow to dissipate sound.

How Technicon Acoustics Can Help You Reduce Generator Noise

Technicon offers a range of acoustic solutions to reduce the sound and vibration noise produced by power generation equipment. Our extensive selection of acoustic products includes acoustic absorbers, acoustic barriers, and a variety of vibration damping materials.

Acoustic Absorbers

Standby Power Generator

Acoustic absorbers are materials specifically designed to absorb sound waves, thereby reducing noise and vibration within the engine enclosure. Technicon’s acoustic absorbers consist of foam or fiber-based materials used to line the solid, sound-reflective surfaces inside the engine enclosure. Our absorbers are available in a wide range of thicknesses and facings specifically tailored to meet the needs of the intended application.

Acoustic Barriers

Acoustic barriers block airborne sound by preventing the transmission of acoustic vibration. They are typically composed of mass-loaded vinyl (MLV), a heavy, dense material that effectively prevents sound waves from traveling from one location to another. Acoustic barriers are often used in conjunction with acoustic absorbers to provide thorough soundproofing. Acoustic absorber/barrier composites are also available to simultaneously absorb and block the transmission of sound.

Vibration Damping Material

Vibration damping materials operate on a different principle from absorbers or barriers. Rather than deflecting or absorbing the excess energy expressed in sound vibration, vibration-damping material changes the resonant frequency of sound and converts it to heat. Commonly used vibration damping materials include rubber, polyvinyl chloride (PVC), and polyurethane. Damping materials help to eliminate noise problems by preventing unwanted vibrations from entering the surrounding environment in the form of either structural or airborne noise.

Importance of Industrial Noise Control

When using a standby generator at a worksite, users must often consider the effect of their equipment on the surrounding area. Untreated noise from generators can cause disturbances in nearby residential areas, businesses, schools, and more. Some municipalities have even established sound level restrictions to mitigate noise levels. As a result, manufacturing a quieter and less disruptive generator becomes increasingly more valuable to consumers.


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Loud generators may also create dangerous conditions for on-site workers. Excessive noise and vibration can be distracting and might prevent nearby workers from hearing instructions or warnings. Miscommunication and inattention can lead to expensive errors and severe worker injuries. Prolonged exposure to high noise levels can also permanently damage the hearing of workers.

Avoiding the potential for disruption and injury requires a quality noise control system to reduce, control, or eliminate the noise from your power generation system.

Control Power Generation Equipment Noise With Technicon Acoustics

For more than 40 years, Technicon has been helping OEMs find workable acoustic solutions for even the most complicated circumstances. We offer cost-effective solutions that will enhance worker safety, improve your relationship with the community, and boost your perceived service value.

To see how Technicon Acoustics can help with your facility noise, contact us today.

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