single-channel vs monophonic

single-channel and monophonic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
single-channel	No	Yes	No	No
monophonic	No	Yes	No	No

As adjectives, single-channel and monophonic are synonyms defined as:

single-channel and monophonic: designating sound transmission or recording or reproduction over a single channel

Other synonyms of single-channel include mono.

single-channel (adjective)	monophonic (adjective)
designating sound transmission or recording or reproduction over a single channel	consisting of a single melodic line
	designating sound transmission or recording or reproduction over a single channel