Unmufle or Unmuffle: How To spell?
The word Unmufle is misspelled against Unmuffle, a verb meaning "To remove the muffling of, as a drum."
Unmuffle has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Unmu & le which should not be misspelled with single 'F'
Wrong Spelling:  Unmu-f-le  Correct Spelling:  Unmu-ff-le 
Check more misspelled words of Unmuffle to spell it correct.