Jitter Buffer calculates network latency based on the transmission and reception time of messages, statistically averages the changes in message delays, predicts network jitter based on historical statistical results to track network conditions, and uses the minimum delay to achieve the goal of eliminating jitter Target.

Illuminance is based on the luminous flux received by the vertical surface as the standard, and if oblique illumination is used, the illuminance decreases. ( )

In the meeting room design, it is recommended to use a light-colored tablecloth to reflect astigmatism to give the participants a good amount of light on their faces (jaws).

Under the H. 323 protocol, the signaling required to complete the master-slave decision process is. ( )

Network recording can record the audio and video output of any venue in the video conference (voice, SD/HD/Zhizhen) and play it back on demand via web.