cockpit voice recorder

The cockpit voice recorder (CVR) is an aviation device that records the voices of pilots and crew members in an airplane's cockpit. It also captures radio transmissions and other sounds audible within the cockpit. This device is a crucial part of a flight recorder, which is required on commercial aircraft to analyze crashes and unusual events.12

Flight recorders typically consist of two parts: the flight data recorder (FDR) and the CVR. The FDR records various flight parameters like airspeed and altitude, while the CVR focuses on audio information. These recorders are designed to be highly durable, often painted bright orange and housed in crash-survivable memory units capable of withstanding extreme impacts, temperatures, and underwater pressures. The data stored on them helps investigators understand the circumstances leading to an aviation incident, contributing to the development of safer aircraft.2