Tutorial 2: Offset leap

5. Concealing cut gaps

The double audio track

Filling out cut gaps is one of the main tasks of the double audio track. This track is faded in automatically into gaps of the primary audio track. Therefore, usually you merely must position the double track so that at such places is a suitable "replacement sound". Also for it AV Adjust provides a suitable marker kind: the DoubleShift marker.

In the sound track of our example, a sound piece which is suitable as filling material can be found certainly. Therefore load by means of the menu command File | Open double audio file ...

  • the file STEP02.WAV as well into the double track.

DoubleShift markers

DoubleShift markers are comparable with RelCut markers, but work instead on the double audio track. Another important difference consists in the fact that DoubleShift markers in the same way as Spline markers work absolutely. This means that herewith the picture/sound offset is set on a desired value, while RelCut markers change the offset by the given amount.

That in our tutorial the double track must be shifted really, you will understand immediately if you now see the preview. The cut gap is already filled - but just with the noise of a hammer blow.

Positioning the double audio track

You use DoubleShift markers preferably there, where the double track is not audible. Thus, set a DoubleShift marker before the Relcut marker and keep a generously distance. You define the marker by means of the DShift button.

The surroundings noises before the first hammer blow are well suited as replacement sound. The playback time is there long enough that the positioning under the cut gap is not critical.

Delay the double track by about 2 seconds using the correction value of the DShift marker. Now in the preview the cut should be no more discernible.

Writing out the result file

After the compulsory final control of the whole video clip, you can write out the result as a video file. Select the menu option Project | Start calculation..., name the target file, and choose as file type "AVI file".