Google Inc.

Google Technology Holdings LLC

Juan C Garcia

Joel A Clark

Robert A Zurek

Tenkasi Vaideeswaran Ramabadran

Plamen A Ivanov

Jincheng Wu

Snehitha Singaraju

Joseph C Dwyer

Rivanaldo S Oliveira

An apparatus includes an echo canceller having an audio signal input and an audio signal output and dynamic pre-conditioning logic. The dynamic pre-conditioning logic is operatively coupled to the echo canceller audio signal output as a feedback signal and has a dynamic pre-conditioning logic output operatively coupled to the echo canceller audio signal input. The dynamic pre-conditioning logic is also operative to receive an audio signal input from at least one microphone. The dynamic pre-conditioning logic is operative to analyze the feedback signal to obtain at least one characteristic, and pre-condition the audio signal input, based on the at least one characteristic of the feedback signal, and provide a pre-conditioned audio signal at the echo canceller audio signal input. The echo canceller audio signal output is then provided to a noise suppressor for the send path of a full duplex communication channel.

Apparatus with dynamic audio signal pre-conditioning and methods therefor

A method and apparatus for adapting acoustic processing in a communication device, and capturing at least one acoustic signal using acoustic hardware of the communication device, characterizing an acoustic environment external to the communication device using the at least one captured acoustic signal, adapting acoustic processing within the communication device based on the characterized acoustic environment.

Method and apparatus for acoustically characterizing an environment in which an electronic device resides

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Grayslake, IL, United States of America

Juan C Garcia