Question: What some notables film sound systems ?
Answers:
answer_text: 4-Track Stereo (CinemaScope)
answer_text: 70&nbsp;mm 6-Track
answer_text: Auro 11.1
answer_text: CDS
answer_text: Cinema Digital Sound
answer_text: Cinematophone
answer_text: Cinerama 7-Track
answer_text: De Forest Phonofilm
answer_text: Dolby Stereo
answer_text: Dolby Atmos
answer_text: Dolby Digital
answer_text: DTS
answer_text: DTS-Stereo
answer_text: Fantasound
answer_text: IMAX 6-Track
answer_text: Kinetophone (Dickson)
answer_text: LC-Concept Digital Sound
answer_text: Movietone
answer_text: Perspecta Stereo
answer_text: Phonofilm
answer_text: Photokinema
answer_text: Photophone (RCA)
answer_text: Sony Dynamic Digital Sound (SDDS)
answer_text: Sensurround
answer_text: Sonics-DDP
answer_text: THX Ltd.
answer_text: TMH Labs 10.2 Channel Sound
answer_text: Tri-Ergon Sound System 68&nbsp;mm
answer_text: Ultra Stereo
answer_text: Vitaphone