vitaphone
/vaɪˈteɪfoʊn/Definitions
1. noun
A system of sound recording or reproduction that uses a phonograph disk with a spiral groove.
“The inventor developed a new technology that combined the vitaphone with a motion picture system.”
2. proper noun
A brand of motion picture sound system developed by Western Electric in the 1920s.
“The theater was one of the first to use the Western Electric Vitaphone system.”