Imagine Videotek LLM-1770, Инструкция по установке и эксплуатации

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LLM-1770
Installation and Operation Manual
87
D/A. Conversion of digital to analog signals.
DA. Distribution Amplifier
dBTP. Decibels relative to nominal 100%, true-peak
Data Element. An item of data as represented before encoding and after decoding.
Decoded Stream. The decoded reconstruction of a compressed bit stream.
Decibel (dB). A logarithmic measure of the ratio between two powers, voltages, currents,
sound intensities, etc. Signal-to-noise ratios are expressed in decibels.
Default. A factory preset value or condition.
Demodulator. A receiver, such as for television broadcast, cable, and closed circuit
applications. A TV demodulator receives and processes off-air or cable RF signals and
provides baseband video and audio outputs.
DHCP. Dynamic Host Configuration Protocol.
Dialnorm. An AC-3 metadata parameter, numerically equal to the absolute value of the
Dialog Level, carried in the AC-3 bit stream.
Dialog Level. The loudness, in LKFS units, of the Anchor Element.
Differential Gain. A measurement that specifies how much the chrominance gain is
affected by the luminance level. Expressed as a percentage showing the largest amplitude
change between any two levels, it indicates how much color saturation variance occurs
when the luminance level changes.
Differential Phase. A peak-to-peak measurement that specifies the extent to which the
chrominance phase is affected by the luminance level. Expressed in degrees of subcarrier
phase, it indicates how much hue shift occurs with luminance level changes.
Digital Video Broadcasting (DVB). A specific project office of the European Broadcast
Union. This group has produced a set of digital broadcasting standards.
DSK. Down Stream Key, a keyer which is electronically located after (or down stream from)
all other functions of a switcher. The key resulting will appear to be on top of all other
pictures from the switcher.
Duration. Duration is used to determine how long an error must persist before it is
reported. Setting the duration to 0 causes an error to be displayed as soon as the CES value
is met.
DVITC, D-VITC. Digital Vertical Interval Time Code. Timecode information stored on
specific lines in the vertical blanking interval of a television signal.
EAV. End of Active Video in component digital systems.
EBU. European Broadcasting Union
Editor. A device or system which controls video tape recorders, video switchers, and other
related devices in order to electronically splice segments of recorded video into a finished
production.