Installation

Open Musicbee
Hamburger Menu->Edit Preferences->Plugins->Add Plugin

Browse to the zip file and click open

If you already have the 3DBee plugin installed the Add Plugin method will most likely state a file permission error. If this happens just extract the zip file to the Musicbee\plugin folder.

Once installed go to -
Musicbee Menu->View->Arrange Panels

In the available elements panel you should have a vumeter option. Drag this to whatever panel you want to display the VU Meter.

Adjust the panel to suit the size of the selected skin. The aspect ratio of the image is currently locked and based on the width so set the desired width first and then adjust the height so it fits.

Right clicking the VUMeter screen will give you some options -
Skins – Change the current skin
Linear – Checked by default, this is the method used to calculate the position of the needle. You may find some skins are more accurate and/or look better with this unchecked.
Rescan Skins – When you add a new skin, click this for it to appear in the skins menu.

Minimum version of Musicbee required 3.6.9040.
The graphics device on the PC needs to support OpenGL 3.3 or higher

See the forum thread for more information.
https://getmusicbee.com/forum/index.php?topic=41692.0

Credits

Included Skins -

AcuVU by Hiccup - https://getmusicbee.com/forum/index.php?topic=41696.0

Hartmann & Braun by Soolo - https://www.aimp.ru/forum/index.php?topic=52865.msg324736#msg324736

M4672 by Black_AVP - https://www.aimp.ru/forum/index.php?topic=52865.msg324398#msg324398

NIght Bars by Panayotis Kritidis - https://www.aimp.ru/forum/index.php?topic=52865.msg335753#msg335753

Thumbnail - AcuVU by Hiccup.

Thanks to Hiccup for testing, feedback and providing calibrated skins to help get VUMeter accurate.

Thanks for oops at Hydrogenaudio.io for sharing how to decode the foobar bin files.

Shameless donation link for bourbon, not coffee -
https://www.buymeacoffee.com/boringname