Patent ID: 8155334

Claim:
A method of supporting talk-through audio in a personal ANR device providing feedforward-based ANR within a casing of the personal ANR device, the method comprising: configuring a first plurality of filters in a feedforward-based ANR pathway of a first ANR circuit of the personal ANR device with a first set of filter coefficients to provide feedforward-based ANR employing a first feedforward microphone coupled to the first ANR circuit to detect environmental sounds in an environment external to the casing and a first acoustic driver coupled to the first ANR circuit to acoustically output feedforward anti-noise sounds to reduce the environmental sounds within the casing; awaiting receipt of an indication of a manually-operable control being operated to enable talk-through; and in response to receiving the indication of the manually-operable control being operated, operating the first plurality of filters to reduce the degree of feedforward-based ANR provided by the first plurality of filters to enable human speech sounds in the environment external to the casing to be conveyed from the first feedforward microphone to the first acoustic driver with less attenuation caused by the provision of feedforward-based ANR by the first plurality of filters.