Washington standard. [volume] (Olympia, Wash. Territory) 1860-1921, 1878-01-05

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nay Be erysesilised - veil Imsgsns %
opera &C - osstorio. sung By the greatest
liv'ng vocsiists. thus recorded, and caps-
6ie OF being repeated - re desire.
A description Of the pAosagrsph l.
contained in the following letter:
To the editor Of The Sasasife Amerj.
ga: In your Journal of Nov. 8, page 273.
you made the announcement that DR.. Ro-
'ape!ly and Prof. Marcy have succeeded in
graphically recording the movements of
tho lips, Of the veil Of the palate, and the
vibrations of the larynx, and you prophe.
~ that this, among other important 70
suits, may lead possibly to the applica.
ton of electricity for the purpose of
transferring these records to distant
points by wire.
Was this prophecy an intuitioni Not
only has it been fulfilled to the letter, but
still more marvellous results achieved by
Mr.. Thomas A. Edison, the renowned |
electrician of New Jersey, who has kind |
y permitted me to make public not only
the fact, but the mOdus operaadi. MI.
Edison, In the course of series Of OK.
tended experiments in the production Of
his speaking telephone, lately perfected,
conceived the highly bold and original
idea Of recording the human voice upon
strip of paper, from which at any sub
seQuent time it might be automatically
redelivered, with all the vocal character
istics Of the original speaker accurately
reproduced. A speech delivered into the |
mouthpiece of this apparatus may fifty
years hence-long after the original
speaker is dead-be reproduced audibly
TO ap andience, with suilicient fidelity to
make the voice easily recognizable by
those who were familiar with the original.
The principles are ~ follows: There is,
drst, speaking-tube provided with a
mouthpicce, ut the base of which is q
metallic diaphragm which responds pow
erfully to the vibrations of the voice. In
the centre of the diaphragm 10 secured q
small, achisel-shapetl point Below this
point is drum revolved by clock work,
and serves to carry forward continuous
tiiet Of paper, having throughout its
length aud exactly Id the centre raised
V-shaped boss, such a. would be made by
passing fillet of paper through Morse
register with the lever constantly de-
pressed. Tue chisel-point attached to
the diaphragm rests upon the sharp edge
of the raised boss. If now the paper DO
drawn. rapidly along, all the movements
Ut the diaphragm will be recorded by
the indentation of the chisel- point into
the delicate boss-it, having no support
underneath, is very easily indented ; to do
this, little or no power is required to OPP
crate the chisel. Theto Of small am-
.plitude will be recorded by slight linden
tations, and those of full amplitude by
deep ones. This 6llet of paper thus re-.
ceives record of the vocal vibrations or
air waves from the movement of the dia-
phragmi and if it Can be made to con-
tribute the same motion to Z second die
phragm, we shall not only see that we
nave record Of the words, but shall
have them re-spOken; and II that second
diaphragm Be hat If the traasunitter, -
= speaking telephone, We shall have the
still more marvellous perfornance of hav.
ing them re-spOken end transmitted By
wire = the sasse time D : 6isoant poiaf.
The reproductor 10 very similar 10 the
iadesdag aPpersauA excfpt tAas . nss
delicate disPhragn d ssed. TAe repso-
docssr - sssscAsd b iss diaparugm O
shssaA. vhich y tara b sssseAsd 10 .
hais spriag. spss ~ ed a shicA i q
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