[Feature Request] Enhanced/Improved DPCM Import (similar to MakeDPCM)

[Gumball2415]

MakeDPCM is comparatively more flexible in converting .wav files to DPCM than the old DPCM import, most notably with finer preprocessing input .wav files and its reduction of positive DPCM bias through a moving average algorithm.

I am planning to implement the following:

• Fine control of preprocessing the input .wav before conversion
• Ability to import longer samples to be cut into adjustable chunks lesser than or equal to 4081 bytes
• Display of the following waveforms:
  • Input .wav file
  • Resulting DPCM
  • Moving average bias