Usage of measured reverberation tail in a binaural room impulse response synthesis

Milos Markovic, Søren Krarup Olesen, Esben Madsen, Pablo F. Hoffmann, Dorte Hammershøi

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Abstract

The aim of the modern communication technologies is an immersive experience. One of the applications that should provide the feeling of being together and sharing the same environment during the communication process is BEAMING. The goal of this paper is to improve audible spatial impression utilizing correct acoustical properties of the specific environments. Binaural room impulse response (BRIR) synthesis represents one of the main tasks in the binaural auralization. When the BRIRs are simulated, high order reflections (reverberation tail) are usually modeled statistically because of the high density of reflections. That can lead to metallic and unnatural sound. Also, room-specific sound envelopment feeling is lost. This paper investigates the possibility of using measured reverberation tail instead of the modeled one in BRIRs synthesis. Three cases are observed. In the first one, BRIRs measurement in a real room is performed. In the second one, synthesized BRIRs are used. BRIRs synthesis is realized using the image-source method for the early reflections and the artificial reverberation algorithm for the reverberation tail. The third case combines modeled early reflections from the second case and measured late reverberation from the first one. All three cases are evaluated and compared objectively based on the obtained room acoustic parameters as well as subjectively by listening tests.
Original languageEnglish
JournalAcustica United with Acta Acustica
Volume97
Issue numberSupplement 1
Pages (from-to)S 122
ISSN1610-1928
Publication statusPublished - 2011
EventForum Acusticum 2011 - Aalborg, Denmark
Duration: 27 Jun 20111 Jul 2011
Conference number: 6

Conference

ConferenceForum Acusticum 2011
Number6
CountryDenmark
CityAalborg
Period27/06/201101/07/2011

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  • BEAMING

    Olesen, S. K., Madsen, E., Markovic, M., Hammershøi, D. & Hoffmann, P. F.

    01/02/201001/08/2014

    Project: Research

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