I reinstalled sound driver all music and mm and now music is fine I don't get it but it's fixed

1) Should not be an issue when using per Track, however when using per Album these variations can happen and are expected.

I have noticed this on some tracks and here is the reason (as near as I can figure).

1) If you have an album that is mixed correctly, all tracks will be basically the same base volume. When you level the tracks by album, the whole thing will change volume slightly based on the volume difference between the album average volume and the set volume (89dB by default). If your album was either mixed poorly or is a compilation of some kind (and not remixed), the volumes could vary dramatically. In this case, some tracks could be so quiet that you will have a difficult time hearing them while others might be fine.

2) Another possibility is that a track has an average volume and a peak volume that are very different. If MM relevels the track based on the peak volume (as it should to avoid clipping), then the majority of the track could be too quiet.

I'm not sure which of these I have a problem with, but on one of my NIN albums, at least one track is so quiet that I can't hear anything for the first couple minutes. At that point, it gets pretty loud. I believe that whoever mixed the track and/or album was on something!

I've tried mp3gain and it has helped but some still are affected it does it on other programs to mp , google music , so my problem is not just with mm

Here is something to try:

I suggest trying an external program (I use MP3Gain which writes leveling information into the mp3 file). Occasionally it reports that it cannot level certain tracks because the file is in use by another app or because the file is corrupted. Most mp3 players will satisfactorily play files that are corrupted somewhat. Test it on files that MM does not handle to see if errors are reported during the operation.

Here is a link to MP3Gain. It is freeware

http://mp3gain.sourceforge.net/index.php

No issues here either.

I only use Analyze Volume and haven't noticed any problems.

Ok so after trying on different computers and uninstalling reinstalling , releveling volume selecting everything you have suggested deselecting everything you have suggested I have made very small improvements but the problem still exists , in some cases on some songs there is as high as 10db difference to the low side and on others there can be a 15 db difference to the loud side the majority of the songs is all the same volume , it acts as if the leveled volume is not saving to the file , all of my songs are 128mb mp3 I have 32 gb of music and love MM but this is driving insane .

You do need to enable Play > Level Playback Volume once you re-analyzed for any effect.

Tried your suggestions nothing has helped it still plays to low on some and to loud on others thank you for help

Disable Only analyze files with unknown Leveling Adjustment under Tools > Options > Volume Leveling and run Tools > Analyze Volume on some files. Then play those files and see if they sound better (make sure it is set to per Track).

A little history I've used the beta for about 4 months came in one day to work and for what ever reason mm reset everything to default since I've had this problem I'm running win 7 1652 build

Ive tried everything nothing is working very irritating it used to be just fine

So both with the option enabled and disabled you see this? Did you set Level Playback/Sync volume to per Track or per Album under Tools > Options > Volume Leveling?

Yes it is but no change