Audio Engineering Society Convention e-Brief Presented at the 138th Convention 2015 May 7–10 Warsaw, Poland This Engineering Brief was selected on the basis of a submitted synopsis. The author is solely responsible for its presentation, and the AES takes no responsibility for the contents. All rights reserved. Reproduction of this paper, or any portion thereof, is not permitted without direct permission from the Audio Engineering Society. Database of single-channel and binaural room impulse responses of a 64-channel loudspeaker array Vera Erbes 1 , Matthias Geier 1 , Stefan Weinzierl 2 , Sascha Spors 1 1 Institute of Communications Engineering, University of Rostock, Richard-Wagner-Str. 31, 18119 Rostock, Germany vera.erbes@uni-rostock.de, matthias.geier@uni-rostock.de, sascha.spors@uni-rostock.de 2 Audio Communication Group, Technical University of Berlin, Einsteinufer 17c, 10587 Berlin, Germany stefan.weinzierl@tu-berlin.de ABSTRACT A freely available database of measured single-channel and binaural room impulse responses (RIRs and BRIRs) of a 64-channel loudspeaker array of rectangular shape under varying room acoustical conditions is presented. The RIRs have been measured at three receiver positions for four different absorber configurations. Corresponding BRIRs for head-orientations in the range of ±80 ◦ in 2 ◦ steps with a KEMAR manikin have been captured for a subset of seven combinations of position and absorber configurations. The data is provided in the Spatially Oriented Format for Acoustics (SOFA). It can be used to study the influence of the listening room on multichannel audio reproduction. As an application, RIRs for the synthesis of a sound field by Wave Field Synthesis are shown. 1. INTRODUCTION The influence of the listening room on audio reproduc- tion is a topic of ongoing research (Toole 2008). Es- tablished reproduction techniques such as two-channel stereophonic or 5.1 surround sound are regularly sub- ject to room-in-room situations. New multichannel tech- niques such as Wave Field Synthesis (WFS) (Berkhout 1988; Spors et al. 2008) require an anechoic environ- ment in theory. Perceptual consequences of the alteration of the sound field by reflections are not fully compre- hended. To allow for the study of the influence of the lis- tening room on multichannel audio reproduction, single- channel and binaural room impulse responses (RIRs and BRIRs) of a 64-channel loudspeaker array have been measured. Differing from recently published data (Mel- chior et al. 2014), impulse responses have been captured for different room configurations by changing the setup of absorptive material in the room. This enables direct comparisons of boundary conditions by binaural synthe- sis which is not possible for in situ listening tests. 2. MEASUREMENT DETAILS The measurements have been performed at the Audio Lab of the Institute of Communications Engineering, University of Rostock.