Abstract
THE meetings of the Second International Congress of Electricity, recently held in Paris, took place in the great building newly constructed by the Pleyel Company in the faubourg Saint Honoré, and there are probably few among those present who were not impressed by the faultless acoustics both of the Great Hall, where the inaugural and other meetings were held, and of the so-called Salle Chopin, where the meetings of Section 1, devoted to pure physics, occurred. The Great Hall can accommodate some three thousand auditors, and yet, as the present writer proved, a speaker reading from a paper in the ordinary tone of a lecturer in a small class-room can be heard perfectly in various parts of the hall, including the back of the upper gallery, more than fifty yards away. The principles upon which this hall was designed by M. Gustave Lyon are very simple, but there is no doubt as to their efficacy in this and other examples of his work.
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ANDRADE, E. The Salle Pleyel, Paris, and Architectural Acoustics. Nature 130, 332–333 (1932). https://doi.org/10.1038/130332a0
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DOI: https://doi.org/10.1038/130332a0