Patent Nr. 314805
Patentti Nr. 314805
Режиссер
Страна
Финляндия
Дата выхода
2020
Жанры
документальный
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.