GB667835A - Improved method and apparatus for adding sound to existing motion picture films - Google Patents
Improved method and apparatus for adding sound to existing motion picture filmsInfo
- Publication number
- GB667835A GB667835A GB711950A GB711950A GB667835A GB 667835 A GB667835 A GB 667835A GB 711950 A GB711950 A GB 711950A GB 711950 A GB711950 A GB 711950A GB 667835 A GB667835 A GB 667835A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sound
- recording
- head
- operator
- synchronisation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
- G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
667,835. Sound-film apparatus. KOLB, O. K. and PETERSEN, A. C. G. March 22, 1950. No. 7119/50. Class 40 (ii). A method of adding sound synchronously with the action in an existing kinematograph film, comprises recording sound on an endless band 16 of magnetic material which is driven synchronously with a similar length band 1 of kinematograph film from which projection takes place on to a screen 6 visible to a person making a sound record via a microphone 27 and amplifier 26. The joins in the bands 1, 16 serve as synchronisation indications and are preset in relation to each other and to the projector 2 and recording head 18. During recording an erazing head 19, preceding the recording head 18, is connected to a source of high-frequency oscillations, and a reproducing head 17 is coupled via an amplifier 24 to headphones 25 worn by an operator in charge of a master switch 28 controlling the circuits of the heads 17, 18, 19. As soon as the completed recording has been heard by the operator, the operator operates the master switch 28 so that the heads 17, 18, 19 are connected as shown by the chain line connections in the figure, and is able instantly to check the accuracy of the synchronisation through the medium of the recording head 18 which then acts as a reproducing head.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB711950A GB667835A (en) | 1950-03-22 | 1950-03-22 | Improved method and apparatus for adding sound to existing motion picture films |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB711950A GB667835A (en) | 1950-03-22 | 1950-03-22 | Improved method and apparatus for adding sound to existing motion picture films |
Publications (1)
Publication Number | Publication Date |
---|---|
GB667835A true GB667835A (en) | 1952-03-05 |
Family
ID=9826971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB711950A Expired GB667835A (en) | 1950-03-22 | 1950-03-22 | Improved method and apparatus for adding sound to existing motion picture films |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB667835A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3049965A (en) * | 1959-01-08 | 1962-08-21 | Instant Synchronization Corp | Method of modifying a recorded sound track and apparatus for producing a modified sound track |
-
1950
- 1950-03-22 GB GB711950A patent/GB667835A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3049965A (en) * | 1959-01-08 | 1962-08-21 | Instant Synchronization Corp | Method of modifying a recorded sound track and apparatus for producing a modified sound track |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB699885A (en) | Magnetic transducer head and method of making same | |
GB667835A (en) | Improved method and apparatus for adding sound to existing motion picture films | |
GB749412A (en) | Improvements in or relating to magnetic sound recording and sound reproducing heads | |
GB731232A (en) | Sound film apparatus with magnetic sound reproduction means | |
US2454491A (en) | Method of reproducing sound motion pictures in synchronism with the picture and sound on separate media | |
SU96154A1 (en) | Method for denoising photographic phonograms | |
GB723137A (en) | Improvements in or relating to a process and arrangement for the production of soundmotion picture films having magnetic sound track | |
GB913487A (en) | Improvements in or relating to a method of and apparatus for magnetically recording and/or playing back sound | |
FR1073327A (en) | Cinematographic sound apparatus for recording, projection, printing and dubbing | |
DK78669C (en) | Apparatus for magnetic sound recording and reproduction. | |
GB772101A (en) | Improvements in or relating to a sound film reproduction apparatus | |
GB558505A (en) | Improvements in or relating to sound picture films | |
GB691472A (en) | Improvements in or relating to the synchronisation of photographic film and sound records | |
GB656218A (en) | A built up combination of apparatus for the reproduction of sound and picture records | |
CA482435A (en) | Photographic apparatus for recording theatre attendance | |
AU164044B2 (en) | Apparatus for magnetic sound-recording and sound reproduction | |
GB710677A (en) | A device for displaying moving pictures | |
GB721551A (en) | Improvements in or relating to methods of recording signals on light-sensitive material | |
JPS5223342A (en) | Talkie projector | |
AU728952A (en) | Apparatus for magnetic sound-recording and sound reproduction | |
GB640645A (en) | Improvements relating to the operation of projectors using film strip | |
CA484145A (en) | Film tensioning apparatus | |
GB705546A (en) | Improvements in or relating to magnetic transducer head | |
GB679282A (en) | Improvements in or relating to sound recording apparatus for cinematograph films | |
CA488355A (en) | Photographic recording apparatus |