Room Acoustics Measurements with an Approximately Spherical Source of 120 Drivers

Publication Type  Conference Paper
Year of Publication  2008
Authors  Schwenke, Roger; Zotter, Franz; Schmeder, Andy; Wessel, David
Conference Name  ASA-EAA Joint Conference
Conference Start Date  6/29/2008
Conference Location  Paris, FR
Abstract  An approximately spherical source of 120 individually controlled drivers is used to perform impulse response measurements in a room with a 1.4 second reverberation time and a distinct echo. The signal to the drivers is processed to produce both omni directional and unidirectional patterns. The omni directional pattern is compared with measurements made with a traditional 12 sided source. The unidirectional patterns are measured both pointed towards and away from the listener position. Intelligibility metrics for the different directionalities and orientations are measured. The unidirectional pattern is aimed in different directions to minimally and maximally excite the distinct echo in the room, and locate it's origin.
Affiliation  CNMAT
Citation Key  Schwenke08
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