> Here ya go. > > I don't know why, but there is a huge DC offset in the file...
Thanks.
There's definitely bad distortion in there due to the DC offset. I assume this is recorded from the MESS PC driver? Anything with a speaker or DAC output causes DC offsets bad in MAME/MESS. Real h/w couples the output through a capacitor to block that normally but we don't have any equivalent.