Tutorial 4: Speed droops

Beginning a new project

At first, prepare AV Adjust for the new project by choosing the menu option File | New project.

Load then by means of File | Open video file ... and File | Open audio file ...

• the file NAGEL.AVI into the video track of AV Adjust as well as
• the file STEP04.WAV into the audio track.

Classification of the present errors

See the video in a preview. Choose for this in the combo box in the preview control a time window of ± 10 seconds, then press the button with the green arrow:

At the first hammer blow the sound comes plainly too late. Then the synchronous run improves noticeably, until the sound, in the end, overtakes the picture. The last hammer blow is to be heard a little earlier than to see.

Thus is at least clear that picture and tone run at different speeds. Whether really exist also speed droops, or maybe even offset leaps, is determinable only with certainty when we have corrected the basic speed of the sound.