How to keep audio synchronized with video when exporting?

Question

I have a few .mp4 source files that I'd like to combine into a single file.  I've done the editing and exported.  When played, the audio is misaligned to the video.  As a test, I've tried exporting a single clip rather than joining a few and the same thing happens.  I end up with audio that is misaligned to the video after export even though they are perfectly synched in the source video.  As another test I've tried exporting a single clip to .mpeg rather than .mp4 and the audio stays perfectly synched with the video.  It seems the misalignment occurs whenever I export to .mp4.  I'm obviously missing a fundemental concept here.  Can anyone shed some light on it for me?  Thanks in advance.
Brandon

Answer 1

Hi Rafeek,
One solution is to set the column width after manually or programmatically refresh the PivotTable, for example:
Private Sub Worksheet_PivotTableUpdate(ByVal Target As PivotTable)
Dim ws As Worksheet
Set ws = Application.ActiveWorkbook.ActiveSheet
ws.Columns("A").ColumnWidth = 10
End Sub
Another option is to set the column width, then protect the columns from been updated by the user, before refreshing the PivotTable, unprotect the worksheet. For example:
Public Sub LockColumnA()
Dim ws As Worksheet
Set ws = Application.ActiveWorkbook.ActiveSheet
ws.Columns("A").ColumnWidth = 10
ws.Columns("A").Locked = True
ws.Protect "123"
End Sub
Public Sub UnprotectWorksheet()
Dim ws As Worksheet
Set ws = Application.ActiveWorkbook.ActiveSheet
ws.Unprotect ("123")
End Sub
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