Reference Guide

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Video playback, import, and export
Controlling playback
Exporting a project to a FireWire DV device
Once your project sounds the way you want it to, you can export the video and audio together to an
external FireWire DV device. This is called “printing to tape,” if your external device uses tape.
To export a project to an external DV device
1. Use the File > Export > Video command to open the Export Video dialog.
2. In the Save as Type field, choose AVC Compliant Device. You might see a different name in
the drop-down menu, depending on what type of external device you are using.
3. Click the Audio Mixdown Options button to open the Audio Mixdown Options dialog.
4. In the Audio Mixdown Options dialog, choose the following options, and then click OK:
• Channel Format. Choose Stereo.
• Sample Rate. Choose 48000.
• Bit Depth. Choose 16.
5. In the Export Video dialog, click the Encoding Options button to open the property page of
your external device.
6. In the property page, use the transport controls to position the tape in your external device to a
blank area for recording.
7. Close the property page, and click the Save button in the Export Video dialog to start exporting.
If you’re printing to a device that uses tape, the tape stops rolling when the export process is
finished.
Synchronizing external video playback to audio
Because there is more latency in FireWire video playback than in PC digital audio playback, video
playback on an external device will probably be playing back later than the audio tracks in SONAR.
To sync external video to audio
1. Right-click the Video view and choose Video Properties from the pop-up menu to open the
Video Properties dialog.
2. On the Render Quality tab of the dialog, under External DV Output, enter an offset number in
the Video Sync Offset field. The number you enter here causes the Video to start playing
sooner than the audio. It’s helpful if your video has some pre-roll footage that contains a visual
sync point.
3. Click OK to close the dialog. Play your video, and readjust the Video Sync Offset number as
needed.
Note: The offset is accurate to 3 decimal places, e.g. 1 ms (a thousandth of a second). One
frame of video is approximately 33 ms long for NTSC and 40 ms for PAL; the offset will typically
be less than 1 second.