Simulation and Analysis of Civil Aircraft Cabin Sound Field and STI based on Wave6

Abstract

The cabin loudspeakers of civil aircraft are very important equipment of passenger address system, and the layout scheme of cabin loudspeaker is one of the important factors affecting the audio quality of passenger address system. In the preliminary design stage of passenger address system, the simulation of sound field and STI of cabin loudspeaker by simulation tools is an important means to study, predict, demonstrate and judge the quality of cabin sound field. In this paper, we adopt an equal straight section of a civil aircraft model which is a twin-aisle wide body with a typical three classes, and simulate and compare the sound field distribution and STI of the main areas of the cabin through Wave6 simulation tool based on two different loudspeakers layout schemes, so as to give the recommended layout scheme of the cabin loudspeakers.