Search: Playback - Swann Digital Video Recorder Manual

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The Video Search Details screen.
Recordings for the selected day are shown per channel by time.
Each recording is color-coded to match the recording mode the DVR was

Search: Playback

using at the time.
To initiate playback:
• Select the channels you'd like to
playback. The DVR can playback
all 16 channels simultaneously,
however displaying so many video
feeds simultaneously may cause a
reduction in playback framerate from
realtime to near-realtime.
• From the Video Type menu, select
the type(s) of video you'd like to
playback. The options are Manual,
Schedule, Motion and All.
Set your Start Date/Time and your
•
End Date/Time.
• If you want to see a graphical
representation of when recordings
were made and what recording
mode triggered them, choose
Details.
Select Search.
•
• Choose which event(s) you want to
play back, and up to four cameras
you'd like to view the video(s) from.
To initiate playback, select Play.
•
Performance and Playback
When playing back multiple channels
at once, you may notice that they're not
quite "in sync" and, in extreme cases, may
be displayed in near real-time (instead of
real-time).
Why?
The DVR only has so much processing
power, and we've configured it so that
it has more resources dedicated to
recording than to playback.
While you're playing back footage,
the DVR continues to monitor and
record normally. Recording from up
to sixteen channels simultaneously
is so resource intensive that playback
performance may be sacrified to
ensure ongoing reliable recording.
When we say "near real-time", this
doesn't mean things will be in slow
motion. Rather, the action will unfold
at normal speed, but be represented by
half the number of frames per second
(12.5fps/PAL or 15fps/NTSC).
This kind of slowdown is rare, and is
typically unnoticable.
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