Recent Optical Improvements in Sound-Film Recording Equipment
Improvements in sound-film recording equipment relating to increased high-frequency response and volume range are discussed. New low power exciter lamps and new types of recording objective lenses have been developed. A lamp adjustment optical system and split-beam monitoring equipment are described.
- Print ISSN
- 0097-5834
- Published
- 1934-09
- Content type
- Original Research
- DOI
- 10.5594/J05448
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