Audio Sync Errors When Deleting Ads

[auto7890]

Audio Sync Errors When Deleting Ads.
Im getting audio sync errors when I delete the ads from a movie that I recorded from television.
I have tried Virtualdub and tried Video to video editor , both cause the same problem. Are there any free programs that can do this without sync errors ? when the people talk in the film , you can see that the audio is out of sync with their lips.
Are ther any other free programs that can do this without sync errors ?
it is in MTS created by TEAC settopbox (MPEG video , MPEG audio ).
I do not mind what container outcome it will be as long as I have no sync errors

[netmask56]

If you can convert it to TS first try VideoRedo - payware but excellent for your needs
ProjectX - freeware also excellent for demuxing and cleaning up some errors. But it is basically a PAL land program. Worth a try.

[Bjs]

In general never use the editing application as a viewer of edited video as in the case with vdub the longer it plays the greater the audio slip becomes.

Use vlc or media player classic to review edited and save clips instead then decide if further editing is required.

[hello_hello]

TSMuxer and MKVMergeGUI can both split while remuxing. They don't have a preview so you'd need to work out where to split using other means, but muxing programs tend to do a pretty good job of maintaining audio sync while slitting and joining. You might need to split off segments one at a time and then append the bits you want to keep, but if it gets the job done.....

Or even try remuxing the whole M2TS file with either of those programs and then cutting the new version with the program you'd normally use. Remuxing as a new file first might give you something you can edit without any issues.

I wonder if there's gaps in the audio stream that aren't being compensated for when slitting and joining etc.
I'm pretty sure eac3to will open M2TS files, or if not maybe remux one as MKV first as the HD-DVD/Blu-Ray Stream Extractor can open MKVs (it's an eac3to GUI). Download eac3to if need be, put it in the same folder as eac3to, open the M2TS file and extract the audio. The reason I suggest that is eac3to will do it's best to fix problems in the process. If there's gaps in the audio it'll replace them with silence, that sort of thing. It writes a log file to tell you what it's done. After the audio is extracted, and assuming the eac3to log file shows it was repaired in some way, you could replace the old audio stream with the new one using TSMuxer, or MKVMergeGUI, then edit the newly created file.

Is the audio sync out by the same amount all the way though? If it appears to be consistent, try setting an appropriate delay (positive or negative) for the audio stream when muxing with TSMuxer or MKVMergeGUI. If the audio sync keeps changing though, setting a delay won't help.

An alternative method, although maybe not ideal, might be to re-encode before splitting. I don't use it much, but in my experience HandBrake is pretty good at maintaining audio sync when encoding "problem" files (ones that'd result in audio sync issues after re-encoding with most GUIs). You could re-encode the whole thing at a high quality, setting the output to the appropriate constant bitrate, and that'd hopefully give you a file that's in sync and can be split without issue.

Just some ideas you might want to try......

[lacywest]

What program did you use to record from TV ... I have an outside antenna and use the ATI 650 HDTV tuner card ... and use the WIN 7 Media Center to record with ... I then edit out the commercials with ... TMPGEnc Video Mastering Works 5 ... it will open ... WTV ... video files ...

[hello_hello]

http://forum.doom9.org/showthread.php?p=1706702#post1706702