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Apparatus and Method for providing a Loudspeaker-Enclosure-Microphone System Description

APPARATUS AND METHOD FOR PROVIDING A LOUDSPEAKER-ENCLOSURE-MICROPHONE SYSTEM DESCRIPTION
 
: Schneider, Martin; Kellermann, Walter

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Frontpage ()

WO EP64827 A1: 20120727
English
Patent, Electronic Publication
Fraunhofer IDMT ()

Abstract
An apparatus for providing a current loudspeaker-enclosure-microphone system description of a loudspeaker-enclosure-microphone system is provided. The apparatus comprises a first transformation unit (130) for generating a plurality of wave-domain loudspeaker audio signals. Moreover, the apparatus comprises a second transformation unit (140) for generating a plurality of wave-domain microphone audio signals. Furthermore, the apparatus comprises a system description generator (150) for generating the current loudspeaker-enclosure-microphone system description based on the plurality of wave- domain loudspeaker audio signals, based on the plurality of wave-domain microphone audio signals, and based on a plurality of coupling values, wherein the system description generator (150) is configured to determine each coupling value assigned to a wave-domain pair of a plurality of wave-domain pairs by determining a relation indicator indicating a relation between a loudspeaker-signal-transformation value and a microphone-signal- transformation value.

: http://publica.fraunhofer.de/documents/N-310975.html