GB304834A - Improvements in or relating to sound recording systems - Google Patents
Improvements in or relating to sound recording systemsInfo
- Publication number
- GB304834A GB304834A GB2881027A GB2881027A GB304834A GB 304834 A GB304834 A GB 304834A GB 2881027 A GB2881027 A GB 2881027A GB 2881027 A GB2881027 A GB 2881027A GB 304834 A GB304834 A GB 304834A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recording
- frequencies
- sensitized
- recorders
- influence
- 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
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
304,834. Whitaker, A., and Gramophone Co., Ltd. Oct. 28, 1927. Optical apparatus.-In recording sound photographically two or more images representing the sound are superposed on the sensitized surface in order to expose it sufficiently, and preferably one of the optical systems is selected to respond best to a different range of frequencies from the other or others so as to produce a record which will reproduce satisfactorily over all the frequencies. A Kerr or Faraday cell may be used in recording the higher frequencies, and a mechanical shutter, suitably damped to give a flat response characteristic, In recording the lower frequencies. The recording systems 2, 3, Fig. 1, are preferably arranged on opposite sides of the sensitized film 1 whose sensitized side is adjacent the recorder of the higher frequencies. The recorders may be connected with the same or separate microphones, and influence separate beams of light, or may influence beams from a single source reflected through the recorders.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2881027A GB304834A (en) | 1927-10-28 | 1927-10-28 | Improvements in or relating to sound recording systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2881027A GB304834A (en) | 1927-10-28 | 1927-10-28 | Improvements in or relating to sound recording systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB304834A true GB304834A (en) | 1929-01-28 |
Family
ID=10281540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2881027A Expired GB304834A (en) | 1927-10-28 | 1927-10-28 | Improvements in or relating to sound recording systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB304834A (en) |
-
1927
- 1927-10-28 GB GB2881027A patent/GB304834A/en not_active Expired
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