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Audio & Video Sync Issues
Hi, I’m sorry I know this has been done a million times but I’ve done a search and I can’t seem to find exactly what I’m after.
I am literally right at the beginning of using Sony Vegas 9. It was recommended to me because it was supposed to be simple to use but straight away I’ve got a major problem. I’ve imported my mp4 video that I recorded using my laptop camera. As soon as I go to play it in Vegas (before any editing or anything) it goes out of sync about 30 seconds in. Why is this happening?
File details are:
General
Name: video017.mp4
Folder: C:UsersOWPicturesCamera Roll
Type: MainConcept AVC/AAC
Size: 333.85 MB (341,859,031 bytes)
Created: Wednesday, 4 September 2013, 1:26:53 PM
Modified: Wednesday, 4 September 2013, 1:33:24 PM
Accessed: Wednesday, 4 September 2013, 1:26:53 PM
Attributes: ArchiveStreams
Video: 00:06:30.260, 100.000 fps progressive, 1280x720x32, AVC
Audio: 00:06:30.299, 44,100 Hz, Stereo, AACACID information
ACID chunk: no
Stretch chunk: no
Stretch list: no
Stretch info2: no
Beat markers: no
Detected beats: noOther metadata
Regions/markers: no
Command markers: noMedia manager
Media tags: noPlug-In
Name: mcmp4plug.dll
Folder: C:Program FilesSonyVegas Pro 9.0FileIO Plug-Insmcmp4plug
Format: MainConcept AVC/AAC
Version: Version 1.0 (Build 2908)
Company: Sony Creative Software Inc. -
1 Reply
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When you say it goes out of sync when you play it, what do you mean exactly. It is likely that, if your computer is not up to scratch, then when you play the timeline, especially if you have created any vfx or other content, then your preview player will be showing dropped frames. This results in the audio playing but the video lagging.
Have a look at the attached image of the Video Previewer window. Make sure where I have Preview Quality as ‘Best (Full)’ you have maybe ‘Preview Auto’ selected. And when playing back, check the area I have circled at the bottom. This will show you the frame rate that is actually being played back. It is likely to start to become less than your clip’s frame rate as you progress through the clip and the computer starts to struggle.
Usually, changing the first criteria (Preview Quality)will assist playback.
Let us know how you go.
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