Volume Fluctuates Automatically [iTunes 11 / Win 8 x64]

Ok, so this issue is starting to bug me more and more now:

iTunes will play music, and periodically it will automatically adjust the volume a little louder and then a little softer, and back and forth and back and forth...

When it starts to do this, I can play the same song over and over with the fluctuations happening. Then I play the same song in a different media player, and it plays just fine.

ONLY ITUNES DOES THIS!

VLC plays just fine, Windows Media Player plays just fine.

I've covered my basic troubleshooting steps:

-Audio driver is up to date

-Windows Sound settings have been checked

-Enhancements have been disabled (and tested both ways also)

-"Do Nothing" is selected in Communications for when Windows detects Mic activity

-My Mic is disabled (never use it anyway)

I've played with all the audio settings in iTunes as well. I have noticed this issue for the last several years at least with iTunes, so its happened on different version of iTunes and Windows, and was so intermittent for me that I never really looked into it, since most the time I'm playing music in either my car or my sound system, rarely from my laptop.

Google search finds topics of others with the same issue, but no real solution.

Can anyone provide a concrete answer? iTunes is really the best media player that I enjoy. I've been listening to music more and more from my laptop now and I would hate to have to use something else because of this issue...

Thank you to all who read and help me out 🙂