Paper Title:
The Study on Influence of High Frequency Noise on Sound Quality for Generator
  Abstract

As cars become quieter the sound quality of components becomes more critical in the customer perception of car quality. This requires a need of new evaluation method for the specification of component sounds. Considering that high frequency noise plays an important roll for internal noise, the noise signals in the range from 7000Hz to 8000Hz are specially emphasized. Then the acoustic evaluation parameters, such as Sound Pressure Level, Sharpness and Steadiness have been evaluated. Judged from experiences and measuring results, an abnormal noise comes from Generator, through the exchange of Generator, Sound Pressure Level and sharpness were greatly improved. At the same time, subjective evaluation also indicated that there was no complaint any more in passenger compartment. Low Sound Pressure Level, sharpness can lead to perceived high product quality.

  Info
Periodical
Chapter
Chapter 1: Vibration Engineering
Edited by
Paul P. Lin and Chunliang Zhang
Pages
74-79
DOI
10.4028/www.scientific.net/AMM.105-107.74
Citation
Z. G. Ma, X. Y. Xu, G. H. Han, "The Study on Influence of High Frequency Noise on Sound Quality for Generator", Applied Mechanics and Materials, Vols. 105-107, pp. 74-79, 2012
Online since
September 2011
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Price
$32.00
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