Sawtooth waveform
A form of signal resembling the teeth of a saw. A video signal having a sawtooth waveform is used to check linearity and other characteristics of video amplifiers.
Shot data
Data recorded, while shooting, in the color bars, the
Shutter speed
The length of time for which the shutter stays open. The higher the shutter speed, the more clearly a moving object can be shot.
Smear
See Vertical smear.
SMPTE
A Society of Motion Picture and Television Engineers, a professional association established in the U.S.A. mainly for the purpose of setting forth motion picture and television engineering standards.
S/N
Time code
A digitally encoded signal which is recorded on video tape to identify each frame of video by hour, minute, second and frame number. SMPTE time code is applied to NTSC system, and EBU time code to PAL and SECAM systems. There are two kinds of recorded signals : longitudinal time code (LTC) and vertical interval time code (VITC). See also LTC and VITC.