Help: out of sync video and audio event

Veasna wrote on 8/27/2001, 7:36 PM
Hello,

I am a new user to Vegas Video 2.0. I am making a VCD MPEG 1 file using digital still images on the video track and a 3:40 minute song on the audio track. Both video and audio events aligns perfectly on the timeline and previewing within VV 2.0 shows that both events end at the same time around 3:40 minutes. However, when I play the MPEG-1 file on the PC using the Window Media Player or on my DVD player via the burned CD, the audio track stops at 3:40 minutes as expected by the video track still continues for at least 7 or 8 images be it ends. This is consistent with another MPEG-1 file I have created. There seems to be more images displayed after the audio track has completed as expected.

Has anyone out there run into this situation? Any help on this is greatly appreciated.

I have sent my question to the Sonic Foundry support and I need to provide further information for them at this point. I am hoping someone in this forum might be able to help me quicker if they have run into the same problem as I am right now.

I am using the VideoCD NTSC template with the bitrate set to 1856.

Thanks,
-Veasna

Comments

SonyNateM wrote on 8/28/2001, 8:40 AM
Veasna,

What happens if you bring the MPEG-1 file you rendered back into Vegas? Is everything aligned properly? Also, which version of Windows and Media Player were used to view the file?

I ask, because MPEG-1 support in earlier versions of Windows had some problems and could often cause A/V drift to occur during playback of long files.
Veasna wrote on 8/29/2001, 2:12 PM
HI Natem,

Thank you for your help. I tried to play the generated MPEG file and it worked inside VV. I also found out that if I reduced the bit rate back to 1123, the window media player seemed to play the file correctly.

I guess there is not workaround for getting better image quality out of a VCD stream...

Thanks,
-Veasna
SonyNateM wrote on 8/30/2001, 9:18 AM
Well, VCD is a standard. In order for a VCD/DVD player with a 1x drive in it to be able to play a VCD correctly, the MPEG-1 video must be 1150kbps or lower. You can certainly create MPEG-1 files with higher bitrates, and even burn them to disc as a VCD, but not all players will support them and there may be problems.