What causes Audio sync issue?
The Audio-sync error can be caused by several factors. The most common are video source (DVD mastering) and video buffering. How the DVD was mastered will affect the overall playback. There are many DVDs which have been mastered incorrectly and suffer from slight audio-syncing not matter what player or display unit is used. The effect of de-syncing can be so negligible it is barely noticeable, to such an extreme that whole audio bits are audible before the according visual actions. Another common type of Audio-sync errors is the cumulative effect of video buffering. In order to produce the best possible video quality, when the Faroudja chip in the DVD player performs de-interlacing and scaling, it may need to buffer some video frames to do motion analysis. This introduces a slight delay to the video. Usually this delay is not noticeable by the viewers.
The Audio-sync error can be caused by several factors. The most common are video source (DVD mastering) and video buffering. How the DVD was mastered will affect the overall playback. There are many DVDs which have been mastered incorrectly and suffer from slight audio-syncing not matter what player or display unit is used. The effect of de-syncing can be so negligible it is barely noticeable, to such an extreme that whole audio bits are audible before the according visual actions. Another common type of Audio-sync errors is the cumulative effect of video buffering. In order to produce the best possible video quality, when the Faroudja chip in the DVD player performs de-interlacing and scaling, it may need to buffer some video frames to do motion analysis. This introduces a slight delay to the video. Usually this delay is not noticeable by the viewers. Certain displays also buffer video frames for many reasons – to scale up the 720p or 1080i video to the display’s native pixel resoluti
