I have been everywhere without a clear cut explanation. Maybe you guys can help... M/S Compression/Mastering/In The Box I am looking for a definite routing scheme to use in a mastering situation. I have one stereo track with the song loaded onto the track. This track is output to the Master. Goal: I need to compress the mid and side separately. NOT M/S RECORDING I am aware of compressor plugins that have this feature already. Fabfilters Pro-C for example. I know Brainworx and Voxengo have plugins to encode and decode M/S. However, I am interested in the routing. What needs to be done in order to compress the Mid and Side separately? If this has been discussed fully somewhere within the forums, A link would be great. Thanks a bunches. I know how to create a Mid and Side track. Insert as a plugin on the Stereo Track, the M/S decoding plugin. Voxengo MSED set to encode. Select the stereo track. Menu Bar at the top of Sonar, select. Edit>Bounce to Track(s) Choose from popup dialog: Source Category: Entire Mix Channel Format: Split Mono Sonar will now mix down 2 stereo tracks. Track 2 will possess the Mid signal. It will be automatically panned hard left. Track 3 will possess the Side Signal. It will be automatically panned hard right. To convert back to Stereo(Decode), all I have to do is route both newly created tracks (Mid and Side Tracks) output to a bus. That bus must contain the Voxengo MSED set to decode. I now have the original Stereo information. Lets say I want to compress the Mid signal. I could put a compressor on the Mid track that was created. (Its panned automatically during creation, to the hard left.) However, when I do put a compressor on this track, any bit of compression seems to "throw stuff off" while listening. If I start to manually bring down the volume of the Mid Track, the fact that the Side track is panned hard right, brings forth the fact that the Side track is panned hard right. In other words: If I mute the Mid track, of course since the Side track is panned hard right, the sound comes from the right speaker or headphone. Is the Panning wrong, or maybe a volume issue? Where do I go from here? If someone could outline in step by step format, that would be the greatest.