Patent Nr. 3148052020
Finnish engineer Eric Tigerstedt solved the dilemma of sound-on-film already before the First World War. All images and sounds in this short film are produced from the surviving test materials originally created in 1914.
- Released
- 17. 5. 2020
- Runtime
- 2 min
- Genres
- Documentary
- Certification
- NO
- Country, language
- FI · FI