Hi peterws,
when I open the Steinway D Binaural preset, the stereo image is definitely bass on L thru to trebles on R.
Double-checked it because checking own sanity in the process. ;0)
Binaural has very definite L & R signals with no hint of the other crossing over - so this can sound as intended on headphones but we need to be aware it's not ideal for speakers and it's kind of it's own psycho-acoustic affect - and if it's not something we're used to, it can take time to hear what's happening really.
If the binaural sound gives confusing stereo image for you, try widening it (or the opposite) by dragging the small arrow which denotes the direction the 'headphones' in the interface are facing. Dragging it will do the physical work, but you can zoom in by right-clicking that arrow to see (and enter) exact centimetre "Head Diameter" - you can take this very literally and measure yourself by wrapping a tape-measure around your head (across ear height) for this or just alter the setting until it sounds 'right'.
Thinking through what sensible solutions might have been in the past, I'd first suggest checking if you have two leads plugged into the wrong sides first
If that or something like it is not the cause I am stumped you could say.. Most normal OS audio interfaces don't tend to offer a swap channel option afaik (without maybe digging deeper into system controls) BUT maybe somewhere in the past you've clicked something to swap channels? Like maybe a game or some setup or config step-thru for another audio product - and forgot about that? Anyway, based on what you describe, those types of things I'd rule out first.
After that, definitely check other obvious stereo signals (like open something in Audacity or a DAW) and pan things left and right.
Maybe you have an external audio box with a panning knob? Without knowing more it's hard to guess but these are the first things crossing my mind - hoping something of that helps.
BTW if you have Pianoteq Pro you could also check/alter stereo for each mic. so you could make a very wide stereo image (bass notes L and trebles R) or reverse.
No need to rely on one preset that you tweak until it's very different - save every worthwhile edit with a different name (maybe use numbers like "Wooded 02" etc.) - these all add up over time and I get to load mine up years later to hear just how wrong I had my ears on at the time and how fractally wrong I might have been with my starting premise - it's all a marvelous learning curve
Pianoteq Studio Bundle (Pro plus all instruments) - Kawai MP11 digital piano - Yamaha HS8 monitors
