User Manual

Table Of Contents
127
DW Spectrum User Manual
Digital Watchdog
Hardware Acceleration of Video Decoding
DW Spectrum provides experimental feature that may enhance performance by using GPU. Intel ® Quick
Sync technology must be supported by the video card to enable this feature.
Additionally there are few more tricks in order to maximize the performance. It is recommended to have
2 video adapters:
Internal Intel HD Graphics the processor should be Intel ® Core i3, i5 or i7 and Intel ® Quick Sync
technology must be supported by motherboard
External Graphic Card (ATI or NVidia).
Finally those video adapters must be plugged in the monitor. If one monitor has several video inputs it
may be necessary to plug internal and external adapters to the same monitor to different inputs. Main
output should be the external graphic card. To do so:
1. Turn off the computer.
2. Connect monitor's Input port 1 to Intel HD Graphics.
3. Connect monitor's Input port 2 to External Graphic Card.
4. Switch to Input port 2 on the monitor's screen menu.
5. Turn on the computer.
Then proceed with the the following to enable hardware acceleration:
1. Open Main Menu and go to System Settings.
2. Check Use advanced hardware acceleration.
3. Click OK when done or Cancel to discard changes.
4. Restart Client.
Note: This mode is experimental and may cause some flickering, noise etc.
Watching Cameras in DW Spectrum
DW Spectrum provides a powerful and easy camera playback engine that enables users to quickly find a
video fragment, perform forensic analysis, capture screenshots and export video in just a few clicks.
This section provides a detailed description on camera playback. The following operations can be
performed:
Navigating through Archive and Live
Searching through Archive
Note: It it recommended to read the following section prior to moving on to the next step: "CPU and
Bandwidth Saving during Playback (RADASS)".
Lastly, videos can be displayed in a slide-show mode. See "Tours" for more details.