What is the purpose of the cockpit voice recorder?

The cockpit voice recorder serves a critical role in aviation safety by logging audio from flight crew communications, as well as sounds from the cockpit environment, such as alarms or engine noises. This recorded audio is invaluable during investigations of incidents or accidents, as it provides essential context about the decisions made by the flight crew, their interactions, and any disturbances in the cockpit. By analyzing this data, investigators can better understand the circumstances leading up to an event and identify any operational issues that may have contributed. This focus on crew communication and cockpit dynamics is a fundamental part of understanding what transpired during a flight, making the cockpit voice recorder an essential tool for enhancing aviation safety and preventing future occurrences.