Abstract
AS pointed out by Dr. Oliver E. Buckley in the foreword to this book, improvement in the telephone and extension of its service are the principal aims of research in the Bell Telephone Laboratories. It is well known, however, that from these Laboratories have come many other devices which have been of very considerable value to the community quite apart from the use of the telephone. It will be recollected that, shortly before the War, Homer Dudley published the results of fundamental research which had been carried out there on the formation of speech sounds. This may have applications in the future in the field of long-distance telephony. A little later another instrument was devised for the analysis of speech sounds and named the ‘sound spectrograph'. This background, which does not appear in the book, makes the development which it describes the more interesting.
Visible Speech
By Ralph K. Potter George A. Kopp Harriet C. Green. (Bell Telephone Laboratories Series.) Pp. xvi + 441. (New York: D. Van Nostrand Co., Inc.; London: Macmillan and Co., Ltd., 1947.) 25s. net.
Article PDF
Rights and permissions
About this article
Cite this article
RADLEY, W. Visible Speech. Nature 161, 334 (1948). https://doi.org/10.1038/161334a0
Issue Date:
DOI: https://doi.org/10.1038/161334a0