UM225 and UM226 by Waves are stereo-to-surround upmix plugins designed to convert stereo audio into 5.0 or 5.1 surround sound formats. They are not effects like EQ, compression, reverb, or saturation; instead, they function as surround sound processing tools that enhance and expand stereo material for immersive listening environments ([Waves](https://www.waves.com/plugins/um225-um226), [Production Expert](https://www.production-expert.com/home-page/2017/1/26/a-z-of-waves-u-is-for-upmix)). These
Mixing • Post production • Recording • Podcast • Rock
