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All Forums > Tech Talk > Tech Talk Forum Page 20 > Sound problems
AuthorPost
Mojo
Deactivated User

1223 Posts
9/03
Posted - Jan 24 2010 : 8:09AM
I've got some RM clips where, on conversion to AVI by MediaCoder, they seem to have their sound corrupted so it's not in line with the picture. Any idea how I can fix this? I've got Ulead Video Studio 11 and this week I'll be getting Roxio Creator 2010 Pro. Can either or both of these fix it with their sound editing abilities when putting the files on disk?
Harri Patel
Senior Member

#SDNY he's all yours. -- Michael Steele
5110 Posts
3/03
Posted - Jan 24 2010 : 1:57PM
Why convert them? VLC Media Player (videolan.org) will play RM files.
Mojo
Deactivated User

1223 Posts
9/03
Posted - Jan 24 2010 : 5:50PM
Yeah, but it doesn't seem to have a function to allow me to burn it to a blank DVD. That's the reason why I need to convert them, because not one DVD making program that I know of accepts RM files. But they do accept things like AVIs and WMVs.
Edited by - Mojo on 1/24/2010 6:42:50 PM
Jordan1
Member

Fishing, a fun hobby!
490 Posts
7/08
Posted - Jan 25 2010 : 11:39PM
Did you ever try Super like I recommended? It converts just about any type of file.
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DrP0rn0
Senior Member

1836 Posts
5/04
Posted - Feb 1 2010 : 5:07PM
It depends upon what kind of "corruption" you are hearing. I think you have an offset or a skew. I.E. the sound is ok, but it's offset from the video so they aren't in sync. A simple offset can be fixed easily. Skew, where the offset changes gradually, is harder to correct, but it can be done.
First, I'd try playing the AVI file in virtualdub, VLC, or Media Player Classic. Each of those let you set an audio offset, so you can try to correct the sync issue. If that works, you can just set the offset in virtualdub, then save the AVI file (with direct stream processing set for video) and it will quickly save the new AVI file with the proper audio offset.
If it's not a simple offset, you'll first want to try to extract the audio separately. Saving just the audio from MediaCoder might work. Take the resulting WAV file and import it into the video with virtualdub and see if the sync is correct.
I'm leaving out TONS of details and in truth there are many more steps after this that I'm not going to write. Audio sync issues can take so many forms it's hard to be comprehensive. If you can host one of the problem files on some free file host, I might take a look and see what I can do with it.
Dr. P
 
Mojo
Deactivated User

1223 Posts
9/03
Posted - Feb 2 2010 : 7:06PM
Thanks for the info. Got VLC installed and have downloaded virtualdub.1.9.8. But the folder doesn't seem to have an install wizard, just a load of techno gizmos. I seem to have found something akin a player but it doesn't seem to want to accept any clips, neither RM nor AVIs. Got any install info for me? Thanks.
DrP0rn0
Senior Member

1836 Posts
5/04
Posted - Feb 3 2010 : 6:30PM
^ Virtualdub isn't "installable". It runs right from it's folder. Vdub is kinda like a player, yes. It has two "screens", one for input and one for output. For your purposes you probably won't change the output screen, but it can be used to do things like scale the video, noise filter it, add titles, stuff like that.
Vdub only deals with AVIs (unless you use some more advanced techniques, or get virtualdubmod which handles mpegs and a few others). To my knowledge, no version of virtualdub handles real media directly. It should, however, show AVIs. If it won't play your AVIs, then I'm guessing you are missing the VFW codec(s) for the codec(s) used in your AVI(s). VFW is a video encoder standard, so you need more codecs than just the ones for playback that are used by your media players. Vdub probably gave you an error message that tried to indicate that. If so, I'd install the Klite codec pack, which should have you covered on all bases.
If this is a simple interface issue, try dropping an AVI onto a running instance of virtualdub and see what happens.
Good luck!
Dr. P



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