OmniTek OTR 1001, Руководство пользователя

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P-2 OmniTek OTR 1001 User Guide, v3.1
P.1 Overview
The Gen window provides a range of facilities associated with creating or playing video and
audio clips. The facilities offered depend on which instrument options are installed but include:
Capture of single frames or video sequences from live input
Play-out of stills and video sequences from disc
Creation and play-out of line patterns
Creation and play-out of zoneplate patterns
Pass-through of the video on either Input 1 or Input 2 (either SDI or EYE inputs
depending on the System configuration: see Section T.4)
Application of modifiers such as gain and noise
Addition of simple tones to video clips
Addition of timecodes
Deliberate addition of pixel errors (for equipment test)
With the GEN_2 option, the OTR also offers dual generator operation (see Section Q.12).
The top two lines of the screen comprise sections dedicated to Generator 1 and Generator 2
(where included), plus a third section that gives details of the current selection for the video
standard at which the images are played out and the form of Genlock that is being applied. When
a single frame is being played out, the Generator details include the type of test signal (e.g.
Zoneplate). When a sequence is being played out, the current position in the sequence is shown.
The central area of the window comprises a blank area into which thumbnails of still images,
video clips and test patterns are placed prior to being played out in a chosen video standard. The
video clips etc. associated with these thumbnails are generally referred to as ‘Patterns’ from their
potential use as the source for test signals.
Where just GEN_BASIC is installed, the OTR offers a fixed selection of thumbnails: three ‘pass-
through’ options (one for Input 1, one for Input 2 and one for both inputs), and four offering
some standard line patterns (100% colour bars, 75% colour bars and two standard pathological
test patterns).
Where the OTR includes the GEN option, the display again automatically includes the three
‘pass-through’ options while the remainder of the screen shows thumbnails for the patterns that
have currently been loaded onto the OTR.
A wide range of pattern types can be loaded into the
framestore of the built-in test signal generator – still images of various formats, sequences,
zoneplates as well as other line patterns. These patterns can also be modified before play-out for
example by setting a particular gain level or by adding audio. You can also define your own
zoneplate and line patterns.
The facilities of the Gen window are chiefly driven from the Button Bar shown at the bottom of
the screen.
Given alongside each thumbnail are brief details of the associated pattern, such as its filename
(where it is saved on disc) and how many frames it comprises. When a pattern is being played
out, the number of the generator that is being used is also shown in the thumbnail. Further details
are given about the pattern that the focus is currently on in a band of Pattern Information shown
just above the Button Bar. The information displayed depends on the type of pattern that is
currently selected but typically includes the number of frames, their dimensions, the amount of
memory that the pattern occupies (where it has been loaded into memory) and whether the
images have been resized.
Further details about how the pattern is set up to play-out are given in the Gen window’s
Properties control (see below).