The sound and the image is not correct from the beginning
Ok. There is the procedure to follow:
We will use VirtualDub to make it possible. Click on VirtualDub, then Open Video file, and load your AVI file.
Then, select the follow parameters:
and this one:
Now, try to select, in the beginning of the movie, where you can see month of the people. To see the desynchronisme.
Now, you can calculate near the correct desynchronisme. Click on:
Then, you will have:
We will take an example. Let's say that the desynchronisme is 1/4 seconds ( 250 milliemes of second).
If the sound comes before the image, enter 250.
If the sound comes after the image, enter -250.
250 is an example. If you have 4 seconds of desynchronisme, enter 4000 or -4000.
Now, you must save your file:
And all is done.