The Study on Influence of High Frequency Noise on Sound Quality for Generator
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.
Sound Quality High Frequency Noise Sharpness Sound Pressure Level
Zhagen Ma Xueying Xu Guohua Han
Shanghai Volkswagen Corporation, Shanghai 201805, China
国际会议
上海
英文
74-79
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）