Actuality event Any event that is not specifically staged for television that exists in its own time scale.
A/D conversion Converting an analogue signal into a digital signal.
Ad-lib shooting Impromptu and unrehearsed camera coverage.
Alarm control Control of audible warning through speaker of camera/recorder of a fault condition in camera or VTR fault.
Aliasing Incorrect sampling due to input frequencies exceeding one half of the sampling rate.
Amplitude Maximum height of a waveform or signal.
Analogue signal A varying voltage signal.
Angle of view The horizontal angle of view of a specific focal length lens. Angle of view varies with a zoom lens.
ASA American Standards Association. A method of rating the speed of film. Replaced by ...