monophonic vs monaural

monophonic and monaural both are adjectives.

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

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