A New Method of Sound Quality Analysis Based on Design of Experiment

作者：Tan, Gangping^*; Jie, Gang^*; Cao, Ming^*

来源：International Journal of Pattern Recognition and Artificial Intelligence, 2016, 30(5): 1658001.

DOI：10.1142/S0218001416580015

• Sound quality
• DOE
• optimization strategy

An optimization strategy of sound quality was proposed to improve sound quality inside a vehicle. The frequency of vehicle interior noise was divided into sub-bands by equivalent rectangular bandwidth (ERB) in the frequency domain, and the intensity of sub-band noise located in the mid-low frequency can be modified by using the measure of active noise control (ANC) in order to analyze its influence on the sound quality of original noise. Orthogonal experiments of vehicle interior noise were conducted according to experimental design. A model of sound quality objective evaluation (SQOE) was proposed as an experimental index. The role of sub-band on the model of SQOE was analyzed at different speeds so as to achieve the optimum level, optimum combination of sound quality and main factors. The results, obtained by implementing the optimization strategy of sound quality, were verified by means of tests. By validation, it showed that optimum sound quality can be achieved by changing the intensity of sub-band noise.

• 出版日期2016-6
• 单位南昌大学