While all 5.1 mixing formats provide the same speaker arrangement, there are three primary standards in use for the track layout of the individual channels that comprise the 5.1-format multichannel mix.
In the following table, it is assumed that surround channels are assigned to outputs 1–6 of a Pro Tools audio interface. Use channels 7–8 to monitor a stereo mix for a stereo version, or for cue mixes and monitoring.
The following table shows the X-MON mono track routing for a 7.1 SDDS mix. A 5.1 mix should use the same routing, excluding outputs 2 and 4 (Lc and Rc).