Amateur talking pictures and recording (1933)

Record Details:

Title:
Amateur talking pictures and recording
Date:
1933
Publisher:
London : Sir Isaac Pitman & Sons, Ltd.
Volume:
Amateur talking pictures and recording
Leaf #:
000213
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
May 02, 2024
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CONCLUSION 201 the angle to 60 degrees, as shown in illustration (C), we find we have reduced the sound track to -5 or one half the width required, if recording took place as in the ordinary manner shown at (A). Clearly by adopting this principle we can put a track on 9-5 mm. film without absorbing too much of the picture. In the equipments such as the R.C.A. and B.T.-H. described in 1Unit ■^ * 0-7Units Wide (B) 0-5 Units mcfe (C) Fig. 8S. Principle or Day Sound Trace Chapter VII we found that a sound track on 16 mm. film was entirely practicable. By altering the angle now. as suggested by Mr. Will Day, and demonstrated by him in experimental equipment, we can cut this sound track down as far as we require. Actually this looks very much like getting something for nothing, which unfortunately in this world docs not obtain. To achieve a high frequency response with this type of sound track equivalent to that of the ordinary one obviously the film speed must be increased. Bui this in no way impairs the usefulness of Mr. Will Day's invention, which solves the problem of a narrow sound track. It should be mentioned that the equipment produced by Mr. Will Day is an 14— (5762)