movies_creation
American Movie Archives (美國電影檔案)
- Title
- Sound Recording and Reproduction (Sound on Film)
- Year
- 1943
- Abstract
- Explains the mysteries of sound recording on film.
- Notes
-
Produced: Encyclopaedia Britannica Films
Sponsor: N/A
Run Time: 10:15
Audio/Visual: Sd., b&w - Keyword
- Perception;Sound;Reproduction;Motion pictures;Sound;Reproduction;Motion pictures
- Theme
- Sound recording / Motion pictures / Perception
- Review
-
Excellent presentation of the soundtrack on the 35mm film, and is similar with the soundtrack on the 16mm film as well. Later on, we added another track to the variable area to give out more dynamics and help reduce noise. The variable density had more noise since the light beam was continually going through a grey area even though there was no variable sound information. Then we came out with Dolby Stereo, version "A" -taking the two variable areas and giving them each a sound record to correspond to the left and right channels. Center channel was when left and right had the same information and the processor took this information as a mono record. Excellent history from the Britannica collection.
(Reviewer: op712) - Location
- A/V room, 2/F