Swann Advanced-Series 8 Channel DVR H.264 Installation Manual page 40

The playback controls work in a similar manner to those you'll find on a DVD player
or VCR. The playback controls affect all channels being played back simultaneously.
Rewind:
Slow:
Play:
Pause:
Fast Forward:
Mute:
Volume Bar:
Volume Level: A numerical representation of the current volume, as set on the
Close Playback: Closes the playback window and returns you to the event list.
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Playback Controls
Reverses the footage. Pressing this button multiple times will
increase the speed at which the footage plays in reverse. Note that,
as the H.264 compression used to encode the video is designed to
play forwards, it requires considerably more processing power to
decode in reverse. For this reason, playback in reverse will not be
smooth.
Press to slow down playback. Pressing once will reduce the
playback speed to ½ speed, pressing it again will slow the speed
to ¼, and pressing it a third time will reduce the speed to ⅛. Press
Play to return to normal speed playback.
Will play footage if paused, or return to normal speed playback
during Fast Forward or Rewind.
Will pause playback, retaining still images on the screen. Press Play
to resume.
Increases the speed of playback. Pressing the button multiple times
will increase the rate of playback by 2x, 4x, 8x and 16x. Press Play to
return to normal speed playback.
Checking this box will stop audio playback. It will not affect the
audio track on the recorded footage.
Adjusts the volume during playback. For the best audio quality this
should be set relatively high, with the volume of the television or
stereo system turned down appropriately.
Volume Bar.