A room acoustic investigation of an actor’s position and orientation for drama performances

Berti Gil-Reyes (Invited author), Cheol-Ho Jeong (Invited author), Jonas Brunskog (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


This study is concerned with optimum positions and orientations of theatre performers when acting off stage. Five audience settings of a drama theatre; a proscenium, an arena and three extended stages have been numerically investigated after a calibration. An analysis of a human voice pattern in a free-field concludes that the sound pressure levels in the range of the azimuth angle [-50º, 50º] with respect to the performer’s frontal direction are equally loud. This holds irrespective of frequency and the elevation angle. Although this optimum speech aperture angle (OSAA) is based on the free-field speech directivity, fairly uniform spatial distributions of D50 were found within the OSAA range for most theatre settings. Among several orientations of the actor tested, an orientation based on the OSAA results in the highest speech intelligibility. For an actor on the extended stage, the verge of the stage gives the best results. When the actor performs among the audience in an U-shaped or arena configurations, the boundary of the acting area is generally recommended rather than the central region.
Original languageEnglish
Title of host publicationProceedings of Euronoise 2009
Publication date2009
Publication statusPublished - 2009
Event8th European Conference on Noise Control - Edingburgh, United Kingdom
Duration: 26 Oct 200928 Oct 2009
Conference number: 8


Conference8th European Conference on Noise Control
Country/TerritoryUnited Kingdom


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