Index for vehicle acoustical comfort inside a passenger car

Mohd. Jailani Mohd Nor, Mohammad Hosseini Fouladi, Hassan Nahvi, Ahmad Kamal Ariffin Mohd Ihsan

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

Sound quality is among the main factors that influence customers' preference for choosing good automobile products. It all started more than 10 years ago and grows up so fast due to high competition in the automotive industries. A-weighted noise levels and sound power are usually utilised to measure the noise but they are not adequate to characterise the impact sound inside a car. The most popular approach to determine sound quality of a product is to define an annoyance or specific index, which involves both subjective and objective evaluations. Subjective and objective tests should be studied concurrently in order to determine the sound quality inside a passenger car. This approach is used in this paper to evaluate vehicle comfort index according to most frequently used sound quality metrics, namely; Zwicker loudness, sharpness, roughness and fluctuation strength. As a result researchers of different fields of automotive acoustics investigations can use this index according to the type of road (international road roughness) without any need to perform time-consuming jury tests. The metrics are correlated with jury test results that show which of them and how much has affected the acoustical comfort of the vehicle. The relation between road roughness and vehicle acoustical comfort index is another point of interest in this research.

Original languageEnglish
Pages (from-to)343-353
Number of pages11
JournalApplied Acoustics
Volume69
Issue number4
DOIs
Publication statusPublished - Apr 2008

Fingerprint

passengers
comfort
Passenger cars
vehicles
Acoustic waves
acoustics
roads
Surface roughness
roughness
Acoustic noise
loudness
Automotive industry
automobiles
sharpness
Automobiles
products
Railroad cars
Acoustics
industries
evaluation

Keywords

  • Comfort index
  • IRI
  • Jury test
  • Kurtosis
  • Metrics
  • Sound quality

ASJC Scopus subject areas

  • Mechanical Engineering
  • Acoustics and Ultrasonics

Cite this

Index for vehicle acoustical comfort inside a passenger car. / Mohd Nor, Mohd. Jailani; Fouladi, Mohammad Hosseini; Nahvi, Hassan; Mohd Ihsan, Ahmad Kamal Ariffin.

In: Applied Acoustics, Vol. 69, No. 4, 04.2008, p. 343-353.

Research output: Contribution to journalArticle

Mohd Nor, Mohd. Jailani ; Fouladi, Mohammad Hosseini ; Nahvi, Hassan ; Mohd Ihsan, Ahmad Kamal Ariffin. / Index for vehicle acoustical comfort inside a passenger car. In: Applied Acoustics. 2008 ; Vol. 69, No. 4. pp. 343-353.
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