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Software Home Video Repair/Fix
NO LONGER DEVELOPED
|SyncView is a free AVI/WAV alignment tool for MPEG video production. The software can be used to derive precise audio-video synchronization settings when muxing/ encoding material for VCD, and the optional SyncTest media download can be used to trace the source of most sync problems.
2.01.01 (April 13, 2006)
Download SyncView 2.01.01 (direct link)
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Good point - only 2 comments and no guides? Surprising considering how useful the program is. I have used it numerous times (with no delay processing the audio) and found it a very handy tool for fixing DivXs with sync problems. I use virtualdub (see: http://www.doom9.org/virtualdub_procedures.htm) to save the audio as a .wav file then load this with the video file in SyncView. When I have found the required delay I then re-encode the movie in virtualdub by selecting direct stream copy under video and full processing for the audio (you can again compress it as an mp3 file and enter the offset value from SyncView in the audio skew correction box offset under audio/interleaving).
All in all a great program that does what it sets out to do very effectively - recommended!
I cannot reproduce the problem described below. SyncView's audio resizing operations have been a standard feature of the software for more than 1.5 years. If it were taking so long to execute simple length adjustments, I think someone would have ranted a long time ago.
800,000+ views and only one comment posted?
The bottom line is, it doesn't take *that* long to do simple length adjustments (i.e., padding and trimming audio samples). It takes however long is needed to write out a new WAVE file--maybe a minute or less with typical movie-length audio files. Other operations (such as time stretching for frame-rate conversions and bit-rate/sample-rate changes) do require resampling and can take several minutes.
I have to assume the complaint was made by a new user who did not properly familiarize himself with the product.
A powerful tools set that lets you very quickly sync an audio track to your video. The visual feedback is good and responsive, and the reduced speed preview is great for checking lip sync. The interface is tidy and mostly straight forward. I had one instance of dual audio tracks playing regardless of my choices, but a restart of the program fixed that. I would have scored the functionality higher except for one problem - speed. Or rather, lack thereof. Simple delay adjustments require a full resample of the audio track, which can take up to 15 - 20 minutes for a 90 minute file. When I am adding or subtracting a few milliseconds, the save should be simple - it is in other apps. Otherwise, for a freebie, very good.
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