Analysis of the Seat-Dip Effect in Twelve European Concert Halls
The effect of low-frequency attenuation due to seats is measured with a loudspeaker orchestra in twelve European concert halls and studied with the help of time-frequency and spatiotemporal analysis methods. The methods show consistent results with previous findings on the seat-dip
effect and offer further explanations to the attenuation bandwidth and correction. The attenuation bandwidth is found to depend on the floor inclination and seat design. In addition, the spatiotemporal analysis shows that uniform accumulation of spatial energy is beneficial for the correction
of the seat-dip effect. This implies that contrary to previous suggestions, no distinct ceiling or lateral reflections correct the seat-dip effect. The shoebox-shaped halls seem to provide more reflections from all directions compared to other hall shapes.
Document Type: Research Article
Publication date: 01 July 2015
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