Nuance Communications, Inc.

Cerence Operating Company

Toby Christian Lawin-Ore

Markus Buck

Tobias Wolff

Gerhard Uwe Schmidt

Samuel Ngouoko Mboungueng

Gerhard Schmidt

Samuel Kevin Ngouoko Mboungueng

The invention provides a method for determining a noise reference signal for noise compensation and/or noise reduction. A first audio signal on a first signal path and a second audio signal on a second signal path are received. The first audio signal is filtered using a first adaptive filter to obtain a first filtered audio signal. The second audio signal is filtered using a second adaptive filter to obtain a second filtered audio signal. The first and the second filtered audio signal are combined to obtain the noise reference signal. The first and the second adaptive filter are adapted such as to minimize a wanted signal component in the noise reference signal.

Method for determining a noise reference signal for noise compensation and/or noise reduction

The invention provides a method for determining a signal component for reducing noise in an input signal, which comprises a noise component, comprising the steps of: estimating the noise component in the input signal, estimating a reverberation component in the noise component, and removing the estimated reverberation component from the estimated noise component to obtain a modified estimate of the noise component.

Method for determining a signal component for reducing noise in an input signal

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Darmstadt, Germany

Toby Christian Lawin-Ore