Someone asked me about this in another thread but seeing as it’s a bit OT, I’m posting it here instead:
Here’s a technique in Control Room I’ve found very useful. It enables you to listen to reference tracks in your session without them having to pass through any master bus processing that you may have. Great for doing instant A/B comparisons while you are working on a mix.
In my default session template, I have 4 audio tracks called Ref 1-4. They are routed to No Bus. I use the Cue Sends to send each Ref track to a different Cue mix. I have EuCon key commands on an Avid S3 controller assigned to select the Control Room Source (i.e. what is coming out of my speakers) -one key for each of the 4 Cue mixes and a 5th key to select the main Mix (the Stereo Out of the session I’m working on). This lets me instantly switch between the session I’m working on and any of the 4 ref tracks (which will not be affected by any master bus processing).
If you don’t have a DAW controller then you will have to use the key command: ‘Select Control Room Source’. The downside is that you cannot individually select the 4 different Cue mixes. The key command will simply cycle through the 4 cues one at a time with each key stroke. Of course you can also use your mouse to click on any of the Control Room sources if you prefer.