- 上映年度: 1951
- 片长: 5分钟
- 官方网站: https://www.nfb.ca/film/pen_point_percussion/
- 导演: Norman McLaren
- 国家: 加拿大
- Imdb: tt0042838
Norman McLaren explains how he makes synthetic sound on film. With an oscilloscope he first demonstrates what familiar sounds look like on the screen; next, how sound shapes up on a film's sound track; and then what synthetic sounds sound like when drawn directly on film. This technique is also demonstrated in Dots and Loops.
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