HD491 Smart Encoder
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Section 4: Exclusive CCMatch
™ Feature
Overview
The EEG HD491 Smart Encoder introduces the addition of our CCMatch™ syncing module that
allows broadcasters to reduce or eliminate latency between captions and audio in their program
video output. In CCMatch™ mode, the HD491 intelligently detects whether the caption input is
post-produced or real-time, and synchronizes captions accordingly with the output video and audio.
Additionally, captioners using iCap™ receive program audio that is advanced with respect to the
unit’s program video output, thereby minimizing caption latency. Captions from commercial and
promotional segments are protected from being overwritten by real-time caption input.
Configuration
CCMatch™ may be used in either of the following 2 scenarios:
CCMatch™ Scenario 1:
Scenario 1 allows the video/audio delay AND synching process to take place
entirely
within the
HD491 resulting in an output of delayed video/audio with appropriately synchronized captions.
This scenario requires only one master video/audio input (See Figure 1).
Figure 1: Workflow for HD491 Smart Encoder with CCMatch™ option enabled
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