A clapperboard, also known as a sync slate or a time slate, is a device used in filmmaking and video production to synchronize audio and video footage. It is a hinged board with a pair of wooden sticks that are clapped together at the start of each take, creating a sharp sound that can be easily identified on both the audio and video recordings.
The clapperboard is held in front of the camera at the beginning of each take and closed shut, making a distinct "clack" sound. The sound is recorded by the microphone on the camera and the image of the clapperboard with its written information is visible in the video frame. This allows the sound and video footage to be synchronized during post-production, ensuring that the audio matches up with the corresponding visuals.
In addition to providing synchronization, the clapperboard also contains various information that is essential for organizing and identifying the footage, such as:
1) Film or Video Title: The name or title of the production.
2) Scene and Take Numbers: These specify which scene and take are being recorded.
3) Date: The date when the footage was shot.
4) Camera Roll: The specific camera roll or digital media card being used.
5) Production Logos: Sometimes production companies or studio logos are included.
6) Director and Cinematographer Names: The clapperboard may display the names of the director, cinematographer, and other key crew members.
The information provided on the clapperboard is crucial for keeping track of the various takes during the editing process and ensuring that the footage is assembled in the correct order and with the appropriate sound synchronization.