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Auditorium acoustics is a very specialized field at the intersection of acoustics and civil engineering.
The two most important properties are Reverberation Control, and the control of Early Reflections.
Wallace Clement Sabine was an US scientist acoustician who formulated much of the early foundation of acoustic measurements and of sound control in buildings.
Before his time, the design of auditoria was very much a hit and miss situation. Some, such as the 'Big Music Hall' in Vienna was a very successful design, and was copied many times round the world. And much music was composed for this famous theatre. Other less successful attempts merely became warehouses.
Chamber music is intended to be performed in small chambers (living rooms) of low reverberance, and the music for these will fail to be perfect in a larger space. Analogously, Cathedral music is intended to be heard in rooms with several seconds reverberation time, and indeed speech may be difficult, and has led to the style of speaking of a few words, followed by a pause to allow the echoes to decay.
Sufficient. Leo Beranek is worth a look up, as is Harris, Cyril M.
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Good acoustics involves careful design of the auditorium, with attention to proper sound reflection and absorbing characteristics at various points in the hall. In a hall with good acoustics, a properly trained person without a microphone can make himself heard and understood throughout the hall. Because getting good acoustics is as much an art as a science in architectural design, sometimes getting good acoustics is more a matter of luck, especially in the older halls. To off-set poor acoustics, or failure to attempt any sort of acoustical design in newer halls, heavy use of amplification and microphones is used. Sometimes it helps, but it is not usually a complete substitute for a hall with good acoustics.
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Soft materials are sometimes used in concert halls to prevent what effect?
Reverberation! :)
What venue was used for entertianment 1970s?
Fields, theaters, stadiums, cinemas, concert halls etc.
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Where might one go to purchase house lights?
Houselights are lights that are used to light up theater, auditoriums and concert halls. Places to purchase houselights are House of Lights, Lighting Direct and Overstock.
Why are concert halls often designed as round or curved auditoriums?
hi erinSimply to improve the way travels throughout the room.The sound of music in halls (acoustics or reverberation) will be altered due to the timing of echoes within the hall and the rate at which they decay away. Echoes with a long delay are generally undesirable and confusing to the ear, so large sheets of hard material (baffle boards) are suspended within the hall and used to reflect sound (make echoes) at short delay times from the stage, rather than allowing the sound to travel as far as the walls or ceiling to create echoes at long delay times. Baffle boards may also be curved in order to disperse echoes to make them less obvious to the ear. Soft absorbent materials are used to prevent echoes from distant parts of the hall which might otherwise create echoes with long delay times. The soft furnishings of seating, carpeting and even the people in the audience will absorb sound and reduce echoes. The essential quality of a concert hall is called the "reverberation characteristic" which is a measure of the timing of the echoes and the rate at which they die away. In a concert hall, a certain amount of reverberation is desirable and pleasing to the ear, while in a recording studio reverberation is prevented as much as possible. Concert halls are regarded generally as having "lively" acoustics while recording studios are regarded as having "dead" acoustics.
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Many halls do sell their used chairs and tables. Contact the manager and let them know that you are interested in being contacted.
