Index for vehicle acoustical comfort inside a passenger car

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 soundinside 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 investigationscan 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 muchhas 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. (A) Reprinted with permission from Elsevier.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0003682X
• Authors:
  • NOR, M J
  • FOULADI, M H
  • NAHVI, H
  • Ariffin, A K
• Publication Date: 2008-4

Language

• English

Media Info

• Pagination: 343-353
• Serial:
  • Applied Acoustics
  • Volume: 69
  • Issue Number: 4
  • Publisher: Elsevier
  • ISSN: 0003-682X
  • Serial URL: http://www.sciencedirect.com/science/journal/0003682X

Subject/Index Terms

• TRT Terms: Automobiles; Comfort; Evaluation; Noise; Tests; Vehicles
• Uncontrolled Terms: Quality
• ITRD Terms: 1243: Car; 9138: Comfort; 9020: Evaluation (assessment); 2492: Noise; 9063: Quality; 6255: Test; 1255: Vehicle
• Subject Areas: Environment; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01091158
• Record Type: Publication
• Source Agency: TRL
• Files: ITRD
• Created Date: Mar 31 2008 8:06AM