Cinematographic annual : 1930 (1930)

Record Details:

Title:
Cinematographic annual : 1930
Date:
1930
Publisher:
Hollywood : The American Society of Cinematographers, Inc.
Volume:
Cinematographic annual : 1930
Leaf #:
000433
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
{"Media History Digital Library","Richard Koszarski","Jeff Joseph"}
Coordinator:
Media History Digital Library
Description:
Date Added:
March 21, 2024
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TECHNIC OF RECORDING CONTROL 413 It is probable that the most important factor, particularly where monaural hearing is concerned, is that which deals with the relative change in loudness of the direct and reflected sound. Since the intensity of the reflected sound varies relatively little CONTOUR UNES OF EQUAL LOUDNESS FOR PURE TONES ft I III FREQUENCY FIGURE 3 from place to place in a room, while the direct sound from the source to the pickup device varies quite rapidly with its distance, the ratio of the intensity of the direct to the reflected sound also varies considerably. Hence, as a source of sound, such as a person speaking, recedes from the microphone, the loudness of the voice appears to decrease slightly while the reverberation appears to increase materially. With binaural listening, this is unconsciously interpreted as distance. It has been found that this effect, when properly controlled, is also interpreted as distance with monaural listening. In the case of the talking pictures, the camera has only one eye, or lens, and the recording system has only one ear or pickup device. Consequently those effects, which were brought about by the binocular seeing and by binaural hearing, cannot be made use of. Long experience with the photography has enabled the cameraman to create a part of the depth illusion by the