Team IP Holdings, LLC

Mck Audio, Inc.

Andrew Haapapuro

Mead C Killion

Viorel Drambarean

Earphone

Systems and methods for arranging two first-order directional microphones in tandem to form a second-order directional microphone system of an amplified listening device are provided. The amplified listening device includes a first directional microphone configured to provide a first electrical signal having a first phase, and a second directional microphone reversed in space and configured to provide a second electrical signal having a second phase opposite the first phase. Microphone inlet ports of the first and second directional microphones are linearly aligned in a same plane. The rear microphone inlet ports of the first and second directional microphones are positioned adjacent each other. The amplified listening device includes a resistive summing circuit without phase inverting circuitry. The resistive summing circuit is configured to combine the first electrical signal and the second electrical signal to generate a second order directional response.

System and method for providing an arrangement of two first-order directional microphones arranged in tandem to form a second-order directional microphone system

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Arlington Heights, IL, United States of America

Andrew Haapapuro