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Passby Noise Level

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Vehicle Passby Noise Level Monitoring by SINUS Messtechnik GmbH

Vehicle Noise Monitoring

The Dynatrack is a special measurement system for capturing the sound emitted by moving road vehicles (Pass-by) and for determining the noise emitted by road vehicle tyres and exhausts on the basis of high-precision GNSS technology.

The Dynatack system is specifically designed to require only one operator for testing. With a user-friendly menu, the Starpass software navigates the user through the individual test sequences. Via Wi-Fi the data captured in the vehicle is synchronized with the data measured by the roadside base stations during the measurement. The Dynatrak Pass-by measurement system therefore allows the driver to evaluate all measurement results required for approval tests according to ISO 362:1998, 362 1-3:2015 and ISO 2001 / 43CE.


  • Pass-by measurements including noise emitted by tyres and exhaust
  • Positioning via GPS
  • Data transmission via Wi-Fi
  • Sound and vibration measurement in the vehicle
  • Controllable by one operator only
  • OBD / CAN option
  • Export of results to common data formats as Microsoft® Excel®, etc.
  • Creation of reports
  • Storage of raw data for post-processing

High-precision GPS technology

Acquisition of the vehicle location, speed and acceleration is realized with high-precision GNSS technology. The utilized receiver uses codes as well as phase signals to determine the vehicle location. Radar speed sensors and light barriers are available as options, if desired.

Efficient measurement

The storage management of the Starpass software allows management of various vehicles with different technical specifications. For example, vehicles with different tyres may be tested and immediately compared while still in the car, which means significant time savings. The user may define various test parameters which  may compared with other tested vehicles. GPS technology enables virtual arrangement of microphone positions as well as test zone entry and exit areas. This allows time-saving definition of several test zones, which may be combined with registered vehicles and test parameters.

Pass-by extension for motorcycles

A special, light-weight system extension has been developed and optimized to match the more demanding requirements of passby noise testing for motorcycles.


ISO 362: Measurement of noise emitted by accelerating road vehicles – Engineering method (Grade 2 accuracy) (Vehicle categories M1 – M3, N1 – N3, L1 – L7, O1 -O4, T, C, R, S, P, V)

UN/ECE R51.03: Noise emissions emitted by M and N category vehicles

DIRECTIVE 2001/43/EC: Tyres for motor vehicles and their trailers

IEC 61672: Class 1 sound level meter

IEC 60651: Class 1 sound level meter

IEC 60804: Class 1 sound level meter

IEC 61260: Class 0 filter


SAMURAI is the universal software package by SINUS Messtechnik GmbH for real-time noise and vibration analysis and offers comprehensive evaluation functions for post-processing. For pass-by measurements the SAMURAI Option: PASS-BY NOISE (800562.1) is required.

Spectra’s Noise & Vibration Works software for Windows provides a feature-rich, high-performance engineering tool for the post-process evaluation of sound and vibration measurement data. The NWWin Option: Pass By Noise (800562.1), enables creation of reports for pass-by noise measurements.


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