The acoustics of a quarry, who needs an acoustician?

• Autores: Tor Halmrast
• Localización: Proceedings of the ISRA 2007 Seville, Vol. 3, 2008 (Oral Session Communications), ISBN 9788469082676
• Idioma: español
• Enlaces
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• Resumen

  • The paper gives information and measurements of the acoustics of an outdoor theatre in a quarry in Fjaereheia, Grimstad, in the southern part of Norway. The site is well known for its natural acoustics. The reason for the good acoustics is not an "arkeztra" platform like the old greek amphi-theatres, but massive stonewalls at the rear of the huge "stage". This theatre gives the actors the possibility of adjusting the voice and the direction of head in a very elegant manner, and use echoes as an effect in the performance. The acoustic measurements indicate that one should not use omni-directional loudspeakers when measuring details of such theatre acoustics.