For RB the SWARM programs does not do anything about the instrument response at all. If you say “use calibrations” it will display pascals, but actually give you counts.
The python programs will take into account the calibration and instrument response but give you amplitude as a function of time over the whole passband. So you cannot say what the magnitudes of the various frequencies are. There may be a python function for filtering. It seems like a pretty powerful package, but quite a bit of work to get set up.
In some ways RB is simpler than RS. RS gives you velocity but what people are often interested in is acceleration or displacement. RB gives you (sound) pressure.directly and that is what is usually of interest.
There is a direct relationship between sound power (intensity) and sound pressure level. It is usually expressed in dB relative to 10^-12 watts/m^2.
Sound Intensity = (Sound Pressure)2 / 400
There is no explanation of what SWARM does about power. Hopefully they are squaring the readings and dividing by something …