When using FireWire routing with ProTools, the video is several frames behind the audio playback. How can I correct the sync?
Video delay is an unavoidable part of all digital video, although the delays with FireWire are significantly longer than with other video cards. The exact amount of delay with FireWire video differs depending on the type of FireWire interface in your computer, the type of FireWire-to-video converter you’re using, and whether or not you are using a FireWire hub. And since what matters is the difference between the audio and video latencies, the apparent delay is also affected by your audio output system. Fortunately, once you find the amount of delay needed for your system it will remain constant. The best way to compensate for this delay in ProTools is to use the Sync Offset setting in the Movie menu. This setting allows you to tune the playback delay in increments of quarter-frames. While you will need to tune this setting for your specific system, 14 quarter-frames is a good initial setting. This setting only affects the video during playback and does not introduce any delay when spo