The Opera Through the Telephone

1879

Very many persons among the opera audiences at the Academy of Music recently noticed a curious little box on the stage, immediately beside the prompter's box, with a tin funnel opening toward the singers, but probably very few had the slightest idea of what were its uses.

In reality it was a scientific marvel, and played a quite important part in an experiment that was completely successful. The instrument was a Blake's Battery transmitter, made very much like an ordinary Bell telephone, but having, in place of the permanent magnet, a Bhumkorf coil and one cell of battery attached. Its usual function on a telephone line is to increase the volume of sound by the action of an induced current, but at the Academy it was employed to gather in the music of the opera and convey it to distant residences. A private wire led from it to the office of Dr. Alan P. Smith, and to the homes of Mr. A. G. Davis. No. 429 Madison avenue, and A. Wilson, Jr., 162 Mosher street, connecting to telephones at each place.

Listeners at these houses placed an ear to the telephone, and heard all the music of the opera almost as distinctly as if seated in the auditorium of the Academy. The voices and the orchestral music were transmitted perfectly. Even the words of the prompter were audible, as well as the applause from the front of the house. The test was a most interesting one, and was perfectly successful. — Baltimore American.