Which component is primarily responsible for recording the cockpit audio?

The Cockpit Voice Recorder (CVR) is specifically designed for capturing audio within the cockpit, including communications between the flight crew and any ambient sounds that may be pertinent to flight operations. Its primary function is to record and preserve critical audio information that can be vital in accident investigations, helping to analyze the circumstances leading up to an incident. The CVR typically stores recordings from the cockpit for a predetermined duration, enabling investigators to retrieve important dialogue that could provide insights into the crew's actions and the aircraft's operational conditions during flight.

In contrast, the Flight Data Recorder (FDR) is focused on recording flight parameters, such as altitude, speed, and heading, rather than audio. The Emergency Locator Transmitter (ELT) is designed for transmitting distress signals in case of an aircraft emergency, not for capturing audio. Lastly, the Flight Management Computer (FMC) assists in flight planning and navigation, playing no role in recording cockpit conversations or sounds. This context highlights the specific role of the Cockpit Voice Recorder in the realm of aviation safety and incident investigation.