DW Spectrum User Manual - publiclibrary.dwcc.tv

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128 DW Spectrum User ManualCPU and Bandwidth Saving during Playback (RADASS)DW Spectrum's architectures provides significant CPU and network bandwidth savings by acquiringmultiple streams from a single camera: High Resolution (regular) and Low Resolution (approximately 10times less bandwidth). If there is not enough bandwidth between Client and Media Server to display theHigh Resolution stream while viewing a camera, then the camera is automatically switched to LowResolution mode.In case of insufficient CPU, a user may experience difficulties with displaying too many videossimultaneously (examples: running over 20 full high resolution videos at the same time, fast forwardingmultiple full high definition videos at the x16 speed, etc.). In this instance, cameras are switched to a LowResolution stream. As a result, CPU will yield a much smoother playback.Additionally, it is possible to choose resolution manually. To do so, Right-Click on Scene's empty spaceand choose Change Resolution... The changes are applied once to the entire Layout and will be revertedback to Auto whenever a user re-opens Layout.Note: this feature requires support of camera dual-streaming.Digital Watchdog
DW Spectrum User Manual129Navigating through Archive and LiveIt is very easy to navigate through Live and Archive in DW Spectrum. Here are some tips and shortcuts.IMPORTANT. It is only possible to navigate through recorded fragments (chunks). Position Slider to thedark area will jump to the next available recorded fragment (displayed in green on Time Line).By default, all Cameras are set to display Live if opened for the first time.Note: all Users are allowed to view cameras Live. However, to view Archive, Viewers must have theappropriate permissions.Search Archive:Click on any desired position on Time Line or Time Scale.Drag Time Slider to the desired position. The picture will refresh while dragging.Time Scale navigation:Zoom Time Scale using Mouse Wheel for finer selectionMove Time Scale ScrollbarDouble Click on Time Scale Scrollbar to zoom outGo to Live:Pressor LMove Position Slider all the way to the rightPlay/Pause: Pressor SpaceDigital Watchdog
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