基于听觉感知的飞机舱内噪声合成

Synthesis of Noise inside Aircraft Cabins Based on Auditory Perception

飞机舱内噪声评价及控制研究需要大量的舱内噪声样本,只依靠实测飞机噪声获取数据具有成本高、数据量有限等缺点。声音合成技术可以在一定程度上弥补其不足,能够提供满足需求的声样本数据库。基于正弦+噪声模型,提出飞机舱内噪声合成的两种方法,以波音737、空客321等4种机型巡航状态下的舱内噪声为参考噪声,合成飞机舱内噪声。从听觉感知角度,开展了主观评价实验,采用成对比较法比较参考噪声和合成声,验证两种声音合成方法的有效性。

The research of aircraft cabin noise evaluation and control requires a large number of cabin noise samples,and only relies on measured aircraft noise to obtain the data,which has disadvantages of high cost and limited amount of data.Sound synthesis technology can make up the shortcomings and provide a sound sample database that meets the needs of the research.Based on the sine plus noise model,this paper proposes two methods for the synthesis of aircraft cabin noise.The cabin noise of the four types of aircraft in the cruise state,including Boeing 737,Airbus 321 and so on,is used as the reference noise to synthesize the cabin noise of the aircraft.From the perspective of auditory perception,a subjective evaluation experiment is carried out,and the pairwise comparison method is used to compare the reference noise and the synthesized sound.The efficiencies of the two sound synthesis methods are verified.