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| Unofficial VirtualDub Support Forums > Advanced Video Processing > Parcial Sond And Image Sincronization |
| Posted by: angikas Oct 15 2011, 08:39 PM |
| I have one AVI file where the sound became unsincronized after some minutes. How can I fix it ? Thanks |
| Posted by: malky Oct 15 2011, 09:54 PM |
| Assuming the first part is in sync and the remainder is out of sync (by a constant amount). Load the file. Scrub to the end of the synced part and select it with the flags. 'Video' > 'Smart Rendering' 'Video' > 'Compression' and select the same codec as the source (XviD?). 'File' > 'Save as AVI..' - name it p1 Delete the selected part (Del key). 'Audio' > 'Interleaving' > 'Audio skew correction', insert 500 or -500 and play the clip. Refine the skew value until the clip is synced. 'File' > 'Save as AVI..' - name it p2 Exit and restart VirtualDub. 'File' > 'Open video file' and select p1.avi 'File' > Append AVI segment' and load p2.avi. 'Video' > 'Direct stream copy' 'File' > 'Save as AVI..' You may be able to use 'Direct stream copy' instead of 'Smart Rendering' for the video, if you can select on key frames. |