Patent ID: 9674368
Date: 2017-06-06
CPC Classifications: H04M

Claim:
1. An audio apparatus comprising: a first circuit for applying a dynamic range adjustment processing to an input signal to generate an output signal for rendering by a loudspeaker, the dynamic range adjustment processing being dependent on a set of dynamic range adjustment parameters; a first linear echo-cancellation filter for generating a first compensated signal from the input signal; a first adapter for determining a set of filter parameters for the first linear echo-cancellation filter in response to the first compensated signal and a microphone signal; a second circuit for generating a second compensated signal by applying the dynamic range adjustment processing and a second echo-cancellation filter to the input signal, the second echo-cancellation filter corresponding to the first echo-cancellation filter; a second adapter for determining the set of dynamic range adjustment parameters in response to the second compensated signal and the microphone signal.