Monophonic

Mon`o`phon´ic

a.	1.	(Mus.) Single-voiced; having but one part; as, a monophonic composition; - opposed to polyphonic.
	2.	Of or relating to a system for recording and reproducing sound, which has only one sound channel; also called monaural or mono. It contrasts with stereophonic (or stereo), quadraphonic, or surround-sound, which have two or more channels, and can thus reproduce the effect of the sound coming from more than one direction.

Adj.	1.	monophonic - designating sound transmission or recording or reproduction over a single channel Synonyms: mono, single-channel
	2.	monophonic - consisting of a single melodic line Antonyms: contrapuntal, polyphonic - having two or more independent but harmonically related melodic parts sounding together