What is the function of the cockpit voice recorder (CVR)?

The cockpit voice recorder (CVR) serves a crucial role in enhancing aviation safety by capturing audio from the cockpit environment, including communications between the flight crew and any other sounds relevant to the operation of the aircraft. This recording serves as an invaluable resource during investigations following an incident or accident. By analyzing the audio captured, investigators can gain insights into the decisions made by the pilots, any issues that arose during the flight, and the overall situational awareness of the cockpit crew.

While engine sounds, air traffic control communications, and real-time feedback play important roles in different aspects of flight operations, they do not encompass the primary function of the CVR. The focus of the CVR is specifically on documenting the exchanges that take place within the cockpit, providing a comprehensive audio record that aids in understanding the circumstances leading up to an event. This capability is instrumental in improving safety protocols and enhancing pilot training programs based on findings from past incidents.