Video and Audio does not match

[hzgg2]

I was trying to convert my RM movie to DVD with Ultra Video Converter, but audio and video doesn't match together. I wasted 2 DVDs!!

Here's my video info (by MediaInfo):

General #0
Complete name : C:\Users\Guan Ying\Documents\YLGS24.rm
Format : RMF
File size : 107 MiB
PlayTime : 49mn 10s
Bit rate : 300 Kbps
Performer : Kwoliwa

Video #0
Codec : RealVideo 3
Codec/Info : Between H263 and H264, RealVideo 8
PlayTime : 49mn 10s
Bit rate : 256 Kbps
Width : 352 pixels
Height : 240 pixels
Display Aspect ratio : 1.467
Frame rate : 15 fps
Resolution : 12 bits
Bits/(Pixel*Frame) : 0.202

Audio #0
Codec : Cooker
Codec/Info : Real Audio G2/7 Cook (low bitrate)
PlayTime : 49mn 11s
Bit rate : 44.1 Kbps
Channel(s) : 2 channels
Sampling rate : 44.1 KHz
Resolution : 16 bits



So can anybody tell me how to solve this problem??

[tomlee59]

I was trying to convert my RM movie to DVD with Ultra Video Converter, but audio and video doesn't match together. I wasted 2 DVDs!!

It's valuable to test first, then burn. That way, you save yourself the aggravation and waste of producing coasters. So, produce the output file (perhaps as a disc image, if nothing else), and then play that back and see if it looks good.

I have not used UVC, so I don't know if that's your problem, or if there's something funky with your source (for example, if the audio track is rmvb, that can cause oddness; constant bitrate is less treacherous). But if the audio-video sync error is a fixed amount, then you can fix things up after the fact. Just demux your encoded movie, and remux with an appropriate compensating offset. Play the movie in VLC, and use the (advanced) option to adjust the audio-video sync. Precision counts; 100ms error is noticeable (and even intolerable to some), and 200ms is intolerable to just about everyone.

I don't know what tools you have, but there are several ways to make use of the offset value you discover in VLC. If you have something like DVDLab, you can use its "Audio delay" feature to adjust the sync. Another way is to process the audio track with a tool such as Audacity (free). If you need to delay the audio relative to the video, insert a silence of the appropriate amount (there are several ways to do this in Audacity; see their documenation, or post back if you need). If you need to advance the audio instead, simply chop off that amount from the beginning.

If you find that the audio offset is not a constant value, pray that it simply drifts at a constant rate. Then you can fix things by shortening or lengthening the audio track (Audacity will do this, too), possibly in combination with an offset.

Then remux, reauthor, *test*, and THEN burn.

Good luck! Sync errors are all too common, have varied causes, and are always irritating to find and fix.