Design Considerations and Scheme Research of Civil Aircraft Audio System

The airborne audio system is an important component of the avionics system, mainly used for voice communication between the aircraft and the ground, communication between flight crews, generation of alarm audio, and reception of navigation audio. It runs through every flight and every phase of the aircraft, and is an important guarantee system for safe flight of the aircraft. In traditional aircraft architecture design, the onboard audio system uses analog audio for transmission and processing, which easily introduces typical audio system problems such as noise and howling. These issues seriously affect the operating experience of pilots, and may even lead to pilots missing important control orders, leading to the occurrence of unsafe events. Therefore, in the design of audio systems, the design of details becomes particularly important. This article summarizes common problems in the use of audio systems and proposes relevant design considerations and solutions.