Audio on the 396xt

I had forgotten how much better audio sounds when using Freescan, Open Band Plan editor and changing audio from narrow band to fm . On digital systems, 150-170 +-, and on 800 mhz,, the audio was just short, choppy, and clippy but when changed to fm, audio comes in and generates full and complete. I had changed that once but overtime, it was written over by Freescan defaults. Not Freescan's fault, mine for not checking.