As you'll soon be able to tell, I'm very new at video editing. I have Vegas Movie Studio Platinum 9.0 and have managed to save a video of my daughter's concert to my computer. Even though it plays through seamlessly on the camera (Sony HDR-SR12E), there are lots of clips on the computer that I've joined together in my Vegas program. The problem is that at every join, there is a gap in the audio-about 1/2 sec of silence. I have the snap function turned on but I don't know what else to do. I'm sure there must be a simple answer. Can anyone please help me?
Re: Gaps in my audio by Chris Wilkins on May 31, 2009 at 11:50:16 pm
Under Options turn off "Quickfade Audio Edits".
Thanks Steven, for your very quick reply. I had already turned off quickfade audio edits, but the problem is still there. When I zoom in to the highest magnification, the video track is complete but there is one little section where there is a flat line in the audio just before the end of the clip. Many apologies for asking what is probably a very obvious question, but I am totally new to this and not as young as I used to be. :)
Re: Gaps in my audio by Chris Wilkins on Jun 1, 2009 at 10:14:58 pm
Are you importing all the footage as 1 large file? Or just 1 clip at a time?
Are you having the capture software splitting the video files into clips?
Are you experiencing any audio to video sync problems?
Have you tried any other software NLE? Premiere (Adobe) has a trial version as well as Vegas Pro.
I originally imported the footage from Adobe Premiere Elements, (add media) which imported everything off my camera at once. I didn't get the chance to choose what to import. It all ended up as a bunch of smaller clips of the 2 long scenes that I shot. Maybe I should have imported it using the Sony PMB, but I originally intended using Elements for the editing. When I realised it didn't have as many good features as the Vegas Movie Studio Platinum 9, I put the clips in there to edit.
I haven't intentionally had the files split into clips, in fact it has been a real headache having all these clips that are about 2 Gig.
I have no synch problems and have tried turning off the snap and edging the beginning of the following clip onto the end of the previous clip to cover the little sound gap but it doesn't really work.
Is Vegas Pro the same as Movie Studio Platinum? I'd be happy to get another version if it fixes my problem.
Thanks again for your help.
Re: Gaps in my audio by Steven Talley on Jun 3, 2009 at 6:25:48 am
I suspect that the problem is with the format of the video on the camera.
Certain file types such as Mpeg use a series of I, B and P frames that are not as easily editable and may be the cause of the problem you are experiencing. You haven't expressed what format the video is being captured in.
I see that the camera can record in AVCHD, mpeg4/H2.64 and mpeg2. Mpeg2 definitely has this frame structure. I'm not sure what you can do about that other then to render the complete file out to a better (easier to edit with) format such a DV or HDV.
If you can...
Try importing the video's again, this time using Vegas? You can set the capture to import 1 large file that you can split up later. Only catch is you need to be using the NTFS file system on your capture hard drive's. Fat32 will only allow 4gb files and some programs will import the video in 2gb chunks. Not my favorite way of doing things. NTFS is best.
Leave snap on and slightly draw in the ends of each file to remove the dead air once you get them lined up.
Audio in the various flavors of MPEG 2 video streams is either Mpg 2/layer 1, or PCM audio. neither of these formats are relevant to GOP compression schemes, they're merely "hooked in" to the GOP stream.
Gapping is caused by loss of system resource (common in audio) lack of system resource, slow decode if it's a compressed source, or bad drivers.
Try using Windows Classic drivers in your Options/Prefs/audio dialog.
Douglas Spotted Eagle
Certified Sony Vegas Trainer
Re: Gaps in my audio by Chris Wilkins on Jun 3, 2009 at 1:35:07 pm
The manual says I'm recording in AVCHD 1080/50i Mpeg2-PS.
I'll try downloading it in the NTSC format next time. I am using PAL at the moment, as I'm in Australia. I assume that I can change from NTSC to PAL when I've got the files into Vegas.
Thanks for your time.