The use of dual-stream feature NVR can be flexibly set according to different situations, more in line with the requirements of network video transmission, it can also be achieved without the premise to enhance computer performance, do more video while browsing, nor It will affect the quality of recorded video。
In a networked video surveillance during and after the analog audio and video signals through imaging, capture, encoding, on the network transmission of digital audio and video streams commonly known as "stream." Effect of two video stream quality of the most important indicators for the "Video Resolution" and "Video bit rate."
Video resolution refers to the encoding, the amount of information stored in each frame, the number of pixels per inch (PPI) to measure. The current mainstream resolution surveillance of 1080p (1920 × 1080), 720p (1280 × 720) and D1 (704 * 576), 500 million and 8 million, 4K gradually coming into sight.