Patent ID: 9326055
Filing Date: 2016-04-26
CPC Classification: H04R,H04S

Claim Text:
1. An apparatus for providing a current loudspeaker-enclosure-microphone system description of a loudspeaker-enclosure-microphone system, wherein the loudspeaker-enclosure-microphone system comprises a plurality of loudspeakers and a plurality of microphones, and wherein the apparatus comprises: a first transformation unit for generating a plurality of wave-domain loudspeaker audio signals, wherein the first transformation unit is configured to generate each of the wave-domain loudspeaker audio signals based on a plurality of time-domain loudspeaker audio signals and based on one or more of a plurality of loudspeaker-signal-transformation values, said one or more of the plurality of loudspeaker-signal-transformation values being assigned to said generated wave-domain loudspeaker audio signal, a second transformation unit for generating a plurality of wave-domain microphone audio signals, wherein the second transformation unit is configured to generate each of the wave-domain microphone audio signals based on a plurality of time-domain microphone audio signals and based on one or more of a plurality of microphone-signal-transformation values, said one or more of the plurality of microphone-signal-transformation values being assigned to said generated wave-domain loudspeaker audio signal, and a system description generator for generating the current loudspeaker-enclosure-microphone system description based the plurality of wave-domain loudspeaker audio signals, and based on the plurality of wave-domain microphone audio signals, wherein the system description generator is configured to generate the loudspeaker-enclosure-microphone system description based on a plurality of coupling values, wherein each of the plurality of coupling values is assigned to one of a plurality of wave-domain pairs, each of the plurality of wave-domain pairs being a pair of one of the plurality of loudspeaker-signal-transformation values and one of the plurality of microphone-signal-transformation values, wherein the system description generator is configured to determine each coupling value assigned to a wave-domain pair of the plurality of wave-domain pairs by determining for said wave-domain pair at least one relation indicator indicating a relation between one of the one or more loudspeaker-signal-transformation values of said wave-domain pair and one of the microphone-signal-transformation values of said wave-domain pair to generate the loudspeaker-enclosure-microphone system description.