Monitor in left ear, Master in right - where to record?

Monitor in left ear, Master in right - where to record?

Since I don’t have any actual monitoring speakers right now, I’m using one headphone cup for monitoring output and the other for master output. What I wanted to know was if there was a way I could configure Traktor so that the right-ear master output is simultaneously captured/recorded in an audio file during mixing, or if I would need a separate stereo channel (i.e. a sound card) to do this. Thanks.

Do you use internal mixer? if so, then traktor audio recorder or native mix recorder can do that for you (it takes signal from master output). Refer to manual, it is kinda well descripted in there.