I can't find anyone having the same problem I have so I haven't been able to find a fix.

This may not be the fix you’re hoping for, but what I would do is import the mp3 in Audacity and export it as a wav file, which Vegas should have no problem with.

Can you post Mediainfo information about the file. It seems like it is playing too fast.

If you send us the properties table of your audio event, perhaps we can help.

If you send us the properties table of your audio event, perhaps we can help.

This is the properties tab for a .mp3 I was trying to use. Can you notice anything weird/something that should be fixed?

Previous thread on this issue: https://www.vegascreativesoftware.info/us/forum/vegas-pro-14-mp3-audio-issues--103789/

The solution there was to uninstall and reinstall with some registry cleaning.

I think the problem may be related to the fact that the MP3 codec requires online additional activation the first time it is used, although I thought that would only be for encoding MP3, not decoding it.

Previous thread on this issue: https://www.vegascreativesoftware.info/us/forum/vegas-pro-14-mp3-audio-issues--103789/

The solution there was to uninstall and reinstall with some registry cleaning.

I think the problem may be related to the fact that the MP3 codec requires online additional activation the first time it is used, although I thought that would only be for encoding MP3, not decoding it.

I will have a go and report back, thanks for the idea

First make sure you are connected to the internet and try doing an ENCODE and see if the additional licensing window pops up. If you can go through that process then decoding might start using the correct decoder.

According to your properties tab, your VP 14 uses the 'mcplug2.dll' instead of the 'mp3plug2.dll'. Make sure you have the 'mp3plug2' folder in the 'FileIO Plug-Ins' folder, and it contains the 'mp3plug2.dll' and the 'mp3plug2.chm' files. The latter one (if you open it) shows that you can open and render mp3 files.

Vegas Pro is not a player. First of all. It is not obliged to play every imaginable data back smoothly on any set of hardware earthly possible. Its obligation is to render/encode compliant files.

Nick, quoting your earlier comment: "I think the problem may be related to the fact that the MP3 codec requires online additional activation the first time it is used, although I thought that would only be for encoding MP3, not decoding it."

I have only recently been trying out V14 and hadn't used it with any MP3 files yet, so I loaded up a few different MP3s and they all played fine without distortion or other anomalies. I then went to render as MP3, at which point I received a notification that the CODEC had been activated.

This confirms that although the CODEC requires activation, this is only for encoding (as you suspected) and it does not affect playback.

The source of the problem is likely that somehow or other CODECs were not registered correctly on installation. A simple uninstall and reinstall should cure it. It may not even be necessary to clean up the registry.

A "clean" uninstall/reinstall might help. See 14 in this post.

The properties window says it is an MPEG1 file.

The properties window says it is an MPEG1 file.

But it probably shouldn't, if this case is similar to the other one I linked to.

I think this is correct as MP3 audio is MPEG 1 Layer 3.

The properties that Clipper posted do say MP3 audio. That makes me think either this is MPEG video and audio, or he posted the wrong properties.