Patent ID: 9635457
Date: 2017-04-25
CPC Classifications: H04R

Claim:
1. An audio processing unit comprising: a first input configured to receive an output audio signal of a microphone via a first microphone capsule; a second input configured to receive an output audio signal of the microphone via a second microphone capsule, wherein the first and second microphone capsules are physically symmetrically structured microphone capsules within said microphone; a first filter unit and a first delay unit which are coupled to the first input and, together, filter and delay the output signal of the first microphone capsule; a second filter unit and a second delay unit which are coupled to the second input and, together, filter and delay the output signal of the second microphone capsule; an adding unit configured to add the filtered and delayed signals from the first filter unit and first delay unit, and the second filter unit and delay unit, and to provide an output signal; and a control unit configured to: