Compound of Objective and Subjective Investigation Aimed at Acoustical Amelioration of a Playhouse

As the acoustics of the two of three halls of Slovenian National Theatre in Maribor proved inadequate, its management has asked for an expertly analysis of the existing acoustical status. The objective part of it comprised investigations of: useful and detrimental reflections, reverberation time curves, direct-to-reflected energy ratios, clarity values and ALcons and RASTI values. Subjective investigation included syllabic intelligibility tests and qualified listeners’ evaluation. Subsequent analysis gave designer all the necessary parameters for reconstruction.