Channel Previews Controls - Telestream Lightspeed Live Capture User Manual

144 Using the Live Capture Web Application
Live Capture Controls and Operation Status

Channel Previews Controls

operates in two different modes depending on whether Time-Shift has been enabled in the
workflow. (See the Capture action man page for details about Time-Shift.)
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Record All—Select Record All to record the currently ganged channels. Record All
When Time-Shift is NOT enabled in the workflow, all channels start recording
immediately with no attempt to synchronize the start timecode.
When Time-Shift has been enabled in the workflow, the system attempts to syn-
chronize all of the selected channels to the exact same start timecode before start-
ing the recording. When recording starts, some portion of the frames in the Time-
Shift buffer are added to the start of the recorded file (going back in time to
included frames from the past). As a rule, add 10 seconds of Time-Shift for each
ganged channel. For example, in a Live Capture system consisting of three servers
capturing 12 channels (4 per server) each channel should be given 40 seconds of
Time-Shift (4 channels X 10 seconds per channel = 40 seconds).
Note that all ganged channels must use the same timecode source in order to be
synchronized to the exact same frame during the gang recording operation.
Lightspeed Live Capture User Guide