SWL-thorens : i fixed some issues with the FFT plot,could be resolved in the next version. Could i have your test file? maybe truncate it to a few seconds of data.
I support Pilots on/off and also dummy frames.
Edit: Okay, found a major bug looking at the code, i'm dividing the floats by 32768, instead of multiplying with 32768. should be easy to fix. now you know the workaround I actually didn't test the F32 stuff, but you could also use signed 16bit.