File:Collected papers on acoustics (1922) (14761980681).jpg

Identifier: cu31924022547024 (find matches)
Title: Collected papers on acoustics
Year: 1922 (1920s)
Authors: Sabine, Wallace Clement
Subjects: Architectural acoustics
Publisher: Cambridge, Harvard University Press (etc., etc.)
Contributing Library: Cornell University Library
Digitizing Sponsor: MSN

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her complicated by the variety of service which it is torender. It must be adapted to speaking from the pulpit and toreading from the lectern. It must be adapted to organ and vocalmusic, and occasionally to other forms of service, though generallyof so minor importance as to be beyond the range of appropriateconsideration. Most cathedrals and modern large chiu-ches havea reverberation which is excessive not only for the spoken but alsofor a large portion of the musical service. The difficulty is notpeculiar to any one type of architecture. To take European ex-amples, it occurs in the Classic St. Paul in London, the RomanesqueDurham, the Basilican Romanesque Pisa, the Italian Gothic Flor-ence, and the English Gothic York. The most interesting example of this type has been Messrs. Cram,Goodhue & Fergusons charming cathedral in Detroit, especiallyinteresting because in the process of correcting the acoustics it waspossible to carry to completion the decoration of the original design.
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Fig. 8. St. Pauls Cathedral, Detroit. Cram, Goodhue and Ferguson, Architects. 144 ARCHITECTURAL ACOUSTICS The nave, moderately narrow in the clerestory, was broad belowthrough its extension by side aisles. It might fairly be regardedas two simply connected spaces. The lower space, when there wasa full audience, was abundantly absorbent; the clerestory, thoughwith wood ceiling, was not absorbent. Although their combinedreverberation was great, it was not so great as alone to produce theactual effect obtained. Absorbing material in the form of a felt,highly efficient acoustically, was placed in the panels on the ceiling.The original architectural design by Mr. Cram (Fig. 7) showed theceiling decorated in colors, and this though not a part of the originalconstruction was carried out on the covering of the felt, with a re-sult highly satisfactory both acoustically and architecturally. Thetransept, also high and reverberant, was similarly treated, as wasalso the central tower which was eve

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