Audio jumping between clips (DV format).

chris100uk · Post by **chris100uk** » Tue Jul 24, 2007 2:15 am

I have a brief 3 minute film with multiple short clips set to music (MP3 imported in).

Can't quite believe this same problem is happening with Videostudio 11 plus, after ditching Windows Moviemaker (it's a well known and unsolvable problem in their forum).

The problem occurs between clips when playing back a project in it's original DV format (avi files).
As one clips changes to another, there is a noticable jump in the accompanying music. Not between all clips, just a few. But enough to ruin the film.

When using Moviemaker the only solution given was to convert the project to wma format before switching it back to DV format. This results in a softer picture (lets be honest.....worse picture quality). Thats unacceptable...and the reason for me buying videostudio.

Before i return this software to the shop, is there a work around for this problem?
Secondly, does any other video editing software handle avi files with a music background ok?

Post by **Ron P.** » Tue Jul 24, 2007 2:24 am

Actually VS handles DV format quite well. It's the MP3 audio format that causes problems. Reason.--MP3 is not a standardized format. There are a variety of codecs for MP3.

Try converting your MP3 to WAV, then inserting that into your project, with your DV video.

There's several converters available, that can convert audio formats. Just do a search for audio converters.

chris100uk · Post by **chris100uk** » Tue Jul 24, 2007 2:24 pm

Thanks for your help but as with windows moviemaker the audio format doesn't make a difference.

Just converted into a WAV file and the music still jumps between the same clips.

Why does the video interfere with the music anyhow? I only want the music to run over the top of a few clips. This should not be a problem.

Also MP3 is a very popular music format. Why would VS have such problems dealing with it?
If i can not get DV format to run smoothly with background music this whole program is worthless to me.

Converting to dvd format (mpeg2) still leaves the music jumpy.

Post by **lancecarr** » Tue Jul 24, 2007 2:45 pm

Hi Chris,
Just looking at your problem there.
First of all the reason Ron suggested the MP3 conversion is that there are a few different types of encoder out there, Lame, Fraunhoffer (that HAS to be spelled wrong!) etc and they create different flavours of MP3. For playback purposes there is not much difference but for adding to video projects there sometimes is...usually VS has trouble with the Lame codec.

Anyway, more to the point you post doesn't actually make it clear that you are fully rendering to a new video file. It kind of sounds like you are previewing the project and getting the jumps. If this is the case then try rendering to a completed file first, then see what you have.
The preview mode of a project is literally slappin' the whole thing together on the fly to give you an idea of what the project will look like. It depends heavily on the speed of the CPU, the state of the data on the discs (fragmented or not) and what other processes may be hogging resources in the background. If you are working in DV then just output to a new fully finished DV file and check the result in a player on your computer like Windows media player. It should only take a minute or two to make the new file anyway.

chris100uk · Post by **chris100uk** » Tue Jul 24, 2007 5:36 pm

Hi,

I already fully rendered my movie (via 'Create Video file') to check out the finished article. After seeing that (as with the preview) the problem hadn't gone away i tried encoding to mpeg2 (for dvd) with the same result.

It seems that DV format can not handle MP3 or WAV audio. I may try WMA, but if VS continues to perform like Windows Moviemaker, this will also be futile.
Any other recommended quality audio files out there?

From experience with Moviemaker wma format did cut down on the 'jumps' between clips compared with MP3. But, a single jump would be too many, and wma format certainly didn't eliminate the problem.

Tried downloading Adobe Premiere Elements trial (1 hour in all) to give a comparison, but only led to a belated message saying my pc processor was not compatible. Today is not my day

chris100uk · Post by **chris100uk** » Tue Jul 24, 2007 8:08 pm

Just to update.

I downloaded a trial of sony vegas movie studio 8.0 and it seems to have eliminated the audio 'jumps' in both the preview and rendered version.
This is in DV format with MP3 audio.

Not sure how it compares in other areas, but i will have to switch to Sony Vegas to progress my project.

Thanks for your help anyway guys.