My music computer is not on so I can’t verify this in RB but this is how I do it in Sonar. I believe it can be done like this in RB also if I remember correctly.

If you are using only one mic: Plug your mic into the Quad-Capture, I will call it input 1 and turn up the volume sliders, both input and output, for input 1 on the Quad.. In RB select input 1 as the input sound source, select it as stereo then increase the record volume on that track in RB. You will get the same mono wav but on both the left and right sides.

If using two mics (or a stereo mic) plug each side of the mic into separate Quad inputs and repeat the volume process for each input. Set RB to record one track for the left mic channel and another track for the right track channel. Set the input volume on both RB channels and record. You can either have each RB track record in stereo or mono and pan each one hard left and right.

Having said that may I ask why you want to record a vocal in stereo? I always record vocals in mono then it if want to have it in stereo I clone the track and pan one track hard left and the other hard right. I will usually add some kind of effect on one of the tracks. Another way is to run the mono vocal into a stereo out effect and pan the effect left and right.

I hope this helps and good luck.

When you are at the checkout line and they ask if you found everything say "Why, are you hiding stuff?"

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware