Methods For an Acceptable Traffic Noise Level Design

  • Zlatko Sviben
  • Zdravko Toš
  • Miroslav Borković
Keywords: sound quality evaluation, traffic noise, active noise contra~ noise patterns, annoyance index, optimisation of noise control

Abstract

Road noise disturbance on rough roads by means of loudnesssensor caused by wideband signal components with a significantimpact of tonal effects on smooth roads and in specificactions in driving lead to the annoyance of drivers. A systemicapproach has been applied for the sound quality estimation ofphysical properties of various noise sources and structuralvibroacoustic car properties and its components as an integratedparameter in car design for the purpose of the developmentand vehicle noise reduction. Simulation of the most importantcharacteristics of listening impressions was performedby modem systems of signal analysis together with the presentationof loudness, sharpness, and roughness as essential quantities.Optimization of the noise control measuring regarding vehiclesound was obtained by means of a simulation system withthe capability of the real time original sound filtering. Structuralanalysis was performed as an acoustic modal analysis on therear part and the car interior with the quantitative analysis ofsport and luxury car sounds. The possibility of active noise controlwas studied and examples are given for an application ofpsychoacoustic tools for car sound quality design. Sound qualitywas obtained by an observation of certain aspects, which areempirically or theoretically connected with the design. An experimentalsound synthesis with psychometrical measuring wasapplied. The sound quality of car interior is presented takinginto consideration the criteria of objectivity, reliability and validity.

References

W. Yagishashi: Analysis of car interior noise during acceleration

taking into account auditory impressions. JSAE

Review 12/91

S. M. Hutchins et al.: Noise, vibration and harshness

from the customer's point of view. FISITA-92

K. Fujita et al.: Research on sound quality evaluation

methods for exhaust noise. JSAE Review 9/88

R. Bisping: Digital generation of acoustical targets for car

sound engineering based on psychometrical data. PI 94,

Vol. 2.

E. Zwicker, H. Fastl: Psychoacoustics- fact and models.

Springer Verlag, Berlin, 1990.

H. Van der Auweraer, K. Wyckaert, W. Hendrickx:

From sound quality to the engineering of solutions for

NVH problems: case studies, Acustica (1997)

R. Bisping: Car Interior Sound Quality: Experimental

Analysis by Synthesis, Acustica (1997)

Briiel & Kjrer:Acoustic Noise Measurements, (1979)

How to Cite
1.
Sviben Z, Toš Z, Borković M. Methods For an Acceptable Traffic Noise Level Design. PROMET [Internet]. 1 [cited 2020Jul.10];16(4):207-10. Available from: http://traffic.fpz.hr/index.php/PROMTT/article/view/594
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