Exporting Audio Clip Information to an EDL

Some audio post-production software can import Edit Decision Lists (EDLs) in the same way as video editing applications. Importing an EDL creates audio clips (or regions) in the audio application’s timeline, which you can then use to recapture your audio from original source tapes. This is similar to a video online edit session, in which all clips are recaptured at the highest quality possible. Since the engineers are recapturing all of the audio directly from the source tapes using workstations with dedicated high-end audio hardware, you can be assured of the highest possible quality.

EDLs can only store information for up to four audio channels, and the clips must have been originally captured using timecode. If some of your audio doesn’t have timecode (for example, if you imported a track from a CD), you must first transfer your music and sound effects to a video or audio format with timecode and then edit the timecoded clips into your sequence. If your program has more than four audio tracks, you need to export multiple EDLs and have them collated by your audio editor.

For detailed information on exporting EDLs, see Importing and Exporting EDLs.

Copying Audio to Timecoded Tapes

If you captured media files from sources without timecode—such as VHS tape, DAT tapes, reel-to-reel tape recorders, or imported audio CDs—the resulting EDL won’t be useful for recapturing because the EDL does not contain relevant timecode information that refers back to the original sources. The solution is to copy all of your audio without timecode to formats that support timecode. You should do this before you begin editing your movie.

Figure. Diagram showing examples of media without timecode and media with timecode.

Once you’ve copied all of your audio material without timecode onto formats with timecode, you can log and capture your audio the same way you log and capture video, knowing that all of your audio edits can now be described in an exported EDL. You treat the new timecoded tapes as your original audio source material for the duration of the project.