I'm not sure what you mean by "left only" since the one audio track can be stereo. If you need to record additional audio tracks, you can always use the free program RealBand that comes with BIAB.


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.