The talkies (1930)

Record Details:

Title:
The talkies
Date:
1930
Publisher:
London: Crosby Lockwood and Son
Volume:
The talkies
Leaf #:
00059
Language:
English
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
March 28, 2024
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THE TALKIES 31 256 times a second, be it a lamp-post or the string of a fiddle. An octave above C is exactly twice the number of vibrations, and an octave above that, twice that again. There is no need to go into this point any further, for the purpose of this book, beyond stating that all "notes" are mathematically related. This fact greatly facilitates the scientific design of sound-reproducing apparatus, and enables the engineer to work on a mathematical basis. It is a great temptation at this point to indulge in an orgy of graphs and other mathematical matters, but we must stick to our bargain and only say just as much as is necessary to make the nature of sound clear. A great deal of work has been done to find out the speeds at which various sounds occur. The things that make speech really understandable are the constant-sounds, F, S, Th, Z, and so on ; the speeds of vibration which make these very important sounds are from 1,000 to at least 8,000 vibrations per second. If, therefore, a sound-reproducer is to be actually perfect, it has got to handle a whole range of vibration speeds from at least 20 to 8,000 per second. The extraordinary thing is that there isn't one that does, and there is a good deal of guessing