monaural vs monophonic

monaural and monophonic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
monaural	No	Yes	No	No
monophonic	No	Yes	No	No

monaural (adjective)	monophonic (adjective)
relating to or having or hearing with only one ear	consisting of a single melodic line
	designating sound transmission or recording or reproduction over a single channel