DYNAMIC CONTROL OF MULTIPLE FEEDFORWARD MICROPHONES IN ACTIVE NOISE REDUCTION DEVICES

Technology described in this document can be embodied in an earpiece of an active noise reduction (ANR) device. The earpiece includes a plurality of microphones, wherein each of the plurality of microphones is usable for capturing ambient audio to generate input signals for both an ANR mode of opera...

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Bibliographische Detailangaben
Hauptverfasser: Pyatt, Richard L, Ku, Emery M
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Technology described in this document can be embodied in an earpiece of an active noise reduction (ANR) device. The earpiece includes a plurality of microphones, wherein each of the plurality of microphones is usable for capturing ambient audio to generate input signals for both an ANR mode of operation and a hear-through mode of operation of the ANR device. The earpiece further includes a controller configured to: process a first subset of microphones from the plurality of microphones to generate input signals for the ANR mode of operation and process a second subset of microphones from the plurality of microphones to generate input signals for the hear-through mode of operation. The second subset of microphones excludes a first microphone from the plurality of microphones located closest to a noise pathway of the earpiece.