I just a made a quick test. Easy to install but took very long time to run on my PC to extract the stems for one file that I tested.

I still think the quality of the extracted stems varies between the various software products, I just made a quick test between Audacity, Steinberg Spectralayer 10 pro and SongMaster pro and Moises ( Moises m4a conv to wav in SO). I extracted the stems from a common country song in mp3 and extracted it as wav. Had a look at and compared the spectrums with Audacity spectrum analyzer for the four different extracted Bass Stems. They had significant different looks, see attached jpgs below.

I wonder if anyone else have any experience regarding the quality of the extracted stems from the various tools available.

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