High-Speed Motion Pictures of the Human Vocal Cords (1940)

20 Mar
Producer  Bell Telephone Laboratories
Contributors  Motion Picture Library, American Medical Association
Length  12 minutes
B&W/Color  Black and White
UO Library Catalog description:  Illustrates apparatus developed for high speed photography of the human vocal cords. Describes briefly the position and action of vocal cords. Presents mirror views of normal larynx during production of sounds of different intensity and pitch. For laryngologists.
Call #  FILM MB294
Genre  Instructional
Rare  Yes
Online  No
Copyright status  Public Domain
Physical condition  Fair
Oregon-related  No


This silent film documents (using Bell Telephone Lab’s patented down-the-throat camera) the physical motions of human vocal cords while at rest and while producing different notes and pitches. Also recorded are the effects of helium gas on the vocal cords.

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