Wild, MoritzMoritzWildHabets, EmanuelEmanuelHabetsMabande, EdwinEdwinMabandeMilano, GuendalinaGuendalinaMilanoLuis-Valero, MariaMariaLuis-ValeroGötz, PhilippPhilippGötzWalther, Andreas,Andreas,WaltherKüch, FabianFabianKüch2022-03-082022-03-082021https://publica.fraunhofer.de/handle/publica/312333SummaryAn acoustic echo cancellation unit, comprising:an audio processor configured to receive a multichannel audio signal andcomprising:a first stage which is configured to process the multichannel audio signal to obtain a first set of spatial audio components; anda second stage which is configured to process the first set of spatial audio components to obtain a second set of spatial audio components;an echo cancellation processor configured to perform echo cancellation by use of the first set of spatial audio components or a deviated version of the first set of spatial audio components as reference signal.en621006patent3771226