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video frame. Here is the full sequence. (The letters correspond to film frames.) A-frame =
video fields 1&2 (AA), B-frame = video fields 1&2&1 (BBB), C-frame = video fields 2&1 (CC), D-
frame = video fields 2&1&2 (DDD).
AES/EBU: (Sometimes abbreviated as AES) Refers to the digital audio standard (AES3-1992) set by the
Audio Engineering Society and European Broadcast Union and used by most forms of digital
audio from CDs to professional digital video.
ARRI Code
An in-camera film timecode system, exposed in the camera during filming, carries machine-
readable data (a modulated series bars similar to SMPTE LTC for each film frame). ARRI
Code specifically contains the production timecode data, hour, minute, second, frame, year,
month, day, and camera ID.
model 5550 Universal decoder.
Aspect Ratio: The ratio of width to height in a picture. Theatre screens generally have an aspect ratio of
1.85 to 1, widescreen TV (16x9) is 1.77 to 1, and normal TV (4x3) is 1.33 to 1.
CCIR (International Radio Consultative Committee)
organisation is now known as ITU.)
CCIR-601: See ITU-R601.
CCIR-656 (This document is now known as ITU-R656). The physical parallel and serial interconnect
scheme for ITU-R601.
blanking, sync and multiplexing schemes used in both parallel and serial interfaces. It reflects
definitions found in EBU Tech 3267 (for 625 line systems) and SMPTE 125M (parallel 525 line
systems) and SMPTE 259M (serial 525 line systems).
Cliff effect:
(also referred to as the 'digital cliff') This is a phenomenon found in digital video systems
that describes the sudden deterioration of picture quality when due to excessive bit errors,
often caused by excessive cable lengths. The digital signal will be perfect even though one of
its signal parameters is approaching or passing the specified limits.
however, the parameter will reach a point where the data can no longer be interpreted
correctly, and the picture will be totally unrecognisable.
Component analog: The non-encoded output of a camera, video tape recorder, etc., consisting of the
three primary colour signals: red, green, and blue (RGB) that together convey all necessary
picture information. In some component video formats these three components have been
translated into a luminance signal and two colour difference signals, for example Y, B-Y, R-Y.
Component digital: A digital representation of a component analog signal set, most often Y, B-Y, R-Y.
The encoding parameters are specified by CCIR-601. CCIR-656 and SMPTE 125M specify the
parallel interface.
Composite analog: An encoded video signal such as NTSC or PAL video that includes horizontal and
vertical synchronising information.
Composite digital:
A digitally encoded video signal, such as NTSC or PAL video that includes
horizontal and vertical synchronising information.
OVERVIEW
9025TR Series Film Footage Encoders Manual
ARRI Code is readable by Evertz UV series reader heads and
An international standards committee. (This
CCIR-656 defines the parallel connector pinouts as well as the
Revision 1.3
At a given moment
Page 1-5
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