Audio - Video Synchronizer Tool, A beautiful software Options

[sbiswas2005]

You might have experienced a gradual loss of video/audio synchronization in AVI (everything is normal at the beginning of the video file, but audio is gradually shifting during playback)

In this case you must adjust FPS (Frame per second) of the avi file. After that, audio and video will be synchronized throughout the movie. But how to determine exact FPS you need to fix gradual loss of synchronization?

First of all, you must launch your movie in any video player. Go to the end of your video file (5-10 minutes before the end of the movie), and observe the difference between video and audio -- you must determine:approximate value of the delay in seconds and type of the delay - "Audio is before Video" or "Audio is after Video".

Now, download this special program I have uploded.

Unzip it, and run the software. You need not to install it. Make sure you have a backup copy of your AVI file. Click Open, find and open the avi file.





Ok. AVI file is opened inside the program. Here you can see information about the file. In this case, we need only fps and Length values. Write down/remember the original Length of the video (for example, 2:22:12).

Try to change fps value. You must perform MINIMAL adjustments. For example, if you have 25fps then you can try 25.004 , 25.008 or 24.998 , 24.990 values etc. Notice, every time when you change fps, Length is also changing.





Now we must consider how to change FPS according to type of the delay:

- if Audio is before Video at the end of the file, then you must increase FPS;

- if Audio is after Video at the end of the file, then you must decrease FPS;

After you have experimented and finally changed fps, the difference between original Length and actual Length must be equal to the value of the delay at the end of the file.

For example,
if "Audio is before Video" and delay is 2 seconds at the end of the movie, then we must experiment with increasing FPS, and to choose 25.005 (actual Length of video will be 2:22:10, original length was 2:22:12).
if "Audio is after Video" and delay is 2 seconds at the end of the movie, then we must experiment with decreasing FPS, and to choose 24.995 (actual Length of video will be 2:22:14, original length was 2:22:12)


Finally click Save button. You AVI file will be saved with new FPS value and the gradual loss of video/audio synchronization will be fixed.

This post has been edited by sbiswas2005: Oct 24 2008, 12:48 PM

[hildebrand]

Oh I missed that software.
Subir ji request reupload of the software.
Thanks in advance.

[sbiswas2005]

Lijiye Hilderji....



Subir

[amitnaha]

Thank you Subir-ji for this nice tool
Amit

[hildebrand]

Thanks subir ji for uploading it on my request.