PPT Slide

known elements of successful concert hall design:

loud sound, early lateral reflection, smooth reverberation

• solid construction: walls of concrete and plaster on wire lath

yields good bass reflection (ìwarmth)

• strong lateral reflection yields ìenvelopmentî

• short initial time delay gap yields ìintimacyî

• direct path from source to listener gives ìpresenceî

raised musician platform, raked seating, raked shallow balconies,

• careful placement of diffuser improves uniformity

• attention to construction details (including noise reduction)

• use electronic enhancement sparingly

• models are of benefit

• advantages of computer design(ìrational designî) still disputed

Ö.but anotherproblem:

how objective is the quality judgment of concert halls?

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