designating sound transmission or recording or reproduction over a single channel
<adj.all>
Monophonic \Mon`o*phon"ic\, a. [Mono- + Gr. ? a voice.] 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. [PJC]