[Warner306]

Problem: This generally refers the clock jitter. Clock jitter is caused by a lack of synchronization between three clocks: the system clock, video clock and audio clock. The system clock always runs at 1.0x. The audio and video clocks tick away independent of each other. Having three independent clocks invites of the possibility of losing synchronization. These clocks are subject to variability caused by differences in A/V hardware, drivers or software. Any difference from the system clock is captured by the display and clock deviation in madVR's rendering stats. If the audio and video clocks are synchronized by luck or randomness, then frames are presented "perfectly." However, any reported difference between the two would lead to a slow drift between audio and video during playback. The video clock yields to the audio clock — a frame is dropped or repeated every few minutes to maintain synchronization.

Problem: This generally refers the clock jitter. Clock jitter is caused by a lack of synchronization between the system clocks: the video clock and the reference audio clock. These clocks are subject to variability caused by differences in A/V hardware, drivers or software. Any difference is captured by the clock deviation in madVR's rendering stats. At any value above or below zero, the video clock is out of sync with the reference clock. This would cause a slow drift between the audio and video. The video clock yields to the reference audio clock — a frame is dropped or repeated on occasion to maintain synchronization.