Vehicle Noise Measurement: Standards, Methods & Solutions|Company News & Updates

Vehicle Noise Measurement: Standards, Methods & Solutions

Release time：2026.05.08 Views：11

Vehicle noise is a significant contributor to urban noise pollution, directly impacting the health and quality of life of communities near roads and highways. Accurate vehicle noise measurement is essential for ensuring compliance with international noise emission standards and supporting effective noise control measures.

Why Vehicle Noise Measurement Matters

Excessive vehicle noise has been linked to sleep disturbance, increased stress levels, and cardiovascular health risks for communities living near busy roads. Governments and regulatory bodies worldwide have established strict vehicle noise emission limits to protect public health. Accurate noise measurement is the foundation of effective vehicle noise control and regulatory compliance.

Key Application Areas

Passenger Car and Truck Noise Testing

Measure and assess noise levels generated by passenger cars and trucks to ensure compliance with international vehicle noise emission standards and type approval requirements.

Motorcycle and Exhaust Noise Measurement

Evaluate motorcycle and exhaust noise levels to verify compliance with noise emission regulations and support roadside noise enforcement programs.

Motorcycle and Exhaust Noise Measurement

Vehicle Type Approval Noise Certification

Conduct precise vehicle noise measurements for type approval certification, ensuring new vehicle models meet the required noise emission limits before entering the market.

Roadside Vehicle Noise Enforcement

Monitor and enforce vehicle noise limits at roadside checkpoints, identifying non-compliant vehicles and supporting traffic noise management programs.

Roadside Vehicle Noise Enforcement

Electric Vehicle Noise Assessment

Assess the acoustic performance of electric vehicles, including low-speed warning sound systems required by regulations to protect pedestrians and cyclists.

Applicable Standards

Standard	Description
ISO 5130	Stationary vehicle noise measurement
ISO 362	Moving vehicle noise measurement
IEC 61672	Sound level meter performance specifications
EU 70/157/EEC	EU vehicle noise emission limits

Recommended Products

Aihua Instruments offers professional Class 1 sound level meters designed for accurate vehicle noise measurement, fully compliant with international vehicle noise testing standards.

Frequently Asked Questions

What is the maximum allowable vehicle noise level?

Under EU Regulation 540/2014, the maximum allowable noise level for passenger cars is 72 dB(A), for trucks over 3.5 tonnes it is 79-81 dB(A), and for motorcycles it ranges from 77-80 dB(A) depending on engine capacity. These limits are measured under the ISO 362 standard test procedure.

What equipment is needed for vehicle noise measurement?

A Class 1 sound level meter compliant with IEC 61672 is required for official vehicle noise testing. A sound calibrator, windscreen and tripod are also essential. The microphone should be positioned at a specific height and distance from the vehicle as specified by the applicable standard.

What is the difference between ISO 362 and ISO 5130?

ISO 362 measures noise from moving vehicles under acceleration, simulating real-world driving conditions. ISO 5130 measures noise from stationary vehicles at a fixed engine speed. Both standards are used for vehicle type approval testing, but ISO 362 is more commonly used for passenger cars and light vehicles, while ISO 5130 is typically used for motorcycles and stationary noise checks.

Can a standard sound level meter be used for vehicle noise testing?

Yes, a Class 1 sound level meter compliant with IEC 61672 can be used for vehicle noise testing. The AWA5662 Class 1 Sound Level Meter from Aihua Instruments is fully suitable for vehicle noise measurement in accordance with ISO 5130 and ISO 362 standards.

Need a vehicle noise measurement solution?

Contact Aihua Instruments for professional advice and product recommendations.

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