DW Spectrum User Manual

DW Spectrum performs motion detection on the server side by analyzing and decoding the secondary stream from a camera, which is usually a low resolution stream. Occasionally, a camera will report its configuration incorrectly and swap the primary and secondary streams. If this occurs and the secondary stream is high-resolution, motion detection processing will create a very high CPU load. A red banner will appear in Camera Settings > Motion stating that motion detecting will need to be forced due to the stream resolution.

To correct this, you can force motion detection onto a specific stream.

1.Open the Camera Settings > Motion tab.

2.The Motion Detection switch will appear to be in a halfway position. Click on the dropdown and select Primary or Secondary.

3.Click the Force Motion Detection button in the red banner.

4.Toggle the Motion Detection switch to move it to the enabled position.

5.Apply changes.

IMPORTANT: Adjusting these settings can seriously affect server performance. See "Dual Stream Processing" for details.