Other

Nxp B.v.

Cochlear Limited

Simon Doclo

Marc Moonen

Simon Haykin

Jan Wouters

Ann Spriet

Rong Dong

A method of active noise reduction is described which comprises receiving an audio signal () to be played, receiving a noise signal (), indicative of ambient noise (), from at least one microphone (), and generating a noise cancellation signal () depending on both, said audio signal () and said noise signal ().

Active noise reduction method using perceptual masking

Various embodiments for components and associated methods that can be used in a binaural speech enhancement system are described. The components can be used, for example, as a pre-processor for a hearing instrument and provide binaural output signals based on binaural sets of spatially distinct input signals that include one or more input signals. The binaural signal processing can be performed by at least one of a binaural spatial noise reduction unit and a perceptual binaural speech enhancement unit. The binaural spatial noise reduction unit performs noise reduction while preferably preserving the binaural cues of the sound sources. The perceptual binaural speech enhancement unit is based on auditory scene analysis and uses acoustic cues to segregate speech components from noise components in the input signals and to enhance the speech components in the binaural output signals.

Method and device for binaural signal enhancement

In one aspect of the present invention, a method to reduce noise in a noisy speech signal is disclosed The method comprises: applying at least two versions of the noisy speech signal to a first filter, whereby that first filter outputs a speech reference signal and at least one noise reference signal, applying a filtering operation to each of the at least one noise reference signals, and subtracting from the speech reference signal each of the filtered noise reference signals, wherein the filtering operation is performed with filters having filter coefficients determined by taking into account speech leakage contributions in the at least one noise reference signal.

Method and device for noise reduction

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Schilde, Belgium

Simon Doclo