http://www.siliconevents.org/fixed-frame-projection/
Fixed Frame Projection
How to Fix audio-video sync problems in MPEG files
Unfortunately, not all conversions go 100% smoothly and result in one of the audio and video
Synchronization. This may be due to many reasons with the primary problems with the original film source
and software / codec clashes. Here I will tell you how to fix these problems with a few clicks.
Tools needed: Womble MPEG Video Wizard DVD
This software provides three tools (three methods) / video synchronization problem to solve your audio.
a): MPEG GOP Fixer
With this tool you can check and correct errors GOP timecode, video and audio PTS (Presentation Time Stamp)
Error and DVD GOP size violations that may occur, in an MPEG file.
1st Click the Tools button on the toolbar and select MPEG GOP fixer in the drop-down list.
2nd In the open dialog box, enter your problematic MPEG file.
3rd Then, in the "Test Options" You can choose a solution to handle your file. eg "Fix GOP time
PTS code and error (read + write) "and then" Start ". The GOP Fixer will automatically scan your MPEG
Files and correct the errors.
b): MPEG MBS Scanner
It can occur Audio / video sync problems when MPEG file contains one of the three changes below:
Time base change, like a time code to restart;
Video encoder settings, such as frame size, frame rate and bit rate, and
Audio Encoder to change settings such as sample rate, bit rate and number of Sound channels.
We refer this type of file as Multiple Bit Stream (MBS) MPEG file. If this happens, we can resolve this
A / V Sync Problem by the use of MPEG MBS Scanner.
1st To open MPEG MBS Scanner, click on the Toolbar and select MPEG MBS scanner from the list.
2nd In the open dialog box, enter your problematic MPEG file, then click "Scan" Determination of
Errors.
3rd After completion The scanner process, you can segment the list of files or a project timeline
Manager for further editing. eg "add to the timeline.
4th Export to a new MPEG file.
c) MPEG Demultiplexer
Use this tool an MPEG stream system in a series of split elementary streams (video and audio-only only
Streams). It is very effective to help you solve the audio / Video synchronization problem, as often
encountered errors in MPEG files with time code.
1st Click the Tools in the toolbar and choose MPEG Demultiplexer in the drop-down list.
2nd In the open dialog box, enter your problematic MPEG file, and check the box next to "Create a new project
on the timeline with the output files for further processing.
3rd Divide the system into separate MPEG video and audio files, file by On "Save." The separate
Video (. MPV) and audio (. Mpa) will be automatically imported to the timeline for completion of the demux
Process.
4th Adjust the relative displacement between Audio and video, using either the video clip or audio clip,
until they are synchronized.
5th Save the result into a new MPEG file.
href = "http://www.womble.com/dvd/download.php" target = "_blank"> Click here to download Womble MPEG Video Wizard DVD
About the Author
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