| megaphonic | (adj) เกี่ยวกับเครื่องกระจายเสียง |
| quadraphonic | (adj) เกี่ยวกับการบันทึกหรือสร้างเสียง 4 แถบ |
| aphonic | (adj) being without sound through injury or illness and thus incapable of all but whispered speech, Syn. voiceless |
| quadraphonic | (adj) of or relating to quadraphony, Syn. quadriphonic, quadrisonic, quadrasonic, Example: his quadraphonic sound system |
| quadraphony | (n) a stereophonic sound recording or reproducing system using four separate channels, Syn. quadriphonic system, quadraphonic system |
| Aphonous | |
| Cataphonic | a. Of or relating to cataphonics; catacoustic. [ 1913 Webster ] |
| Cataphonics | n. [ Pref. cata + phonic: cf. F. cataphonique. ] (Physics) That branch of acoustics which treats of reflected sounds; catacoustics. [ 1913 Webster ] |
| Diaphonical | |
| Diaphonics | n. The doctrine of refracted sound; diacoustics. [ 1913 Webster ] |