Cochlear Limited

Phonak Ag

Adam A Hersbach

John Michael Heasman

Stefan Jozef Mauger

Pam W Dawson

Hugh Joseph McDermott

Michael Goorevich

Paul Francis Holmberg

Andrea Simpson

Richard Bruce Murphy

Paul Michael Carter

Oliver John Ridler

Kenneth Oplinger

Evert Dijkstra

Ralph Peter Derleth

Silvia Allegro

Federico Bolner

Olegs Timms

Hugh Mcdermott

Presented herein are techniques for increasing sensitivity of a hearing prosthesis to sound signals received from the 'side' of a recipient. The sensitivity of the hearing prosthesis to sound signals received from the side of a recipient is provided by a spatial pre-filter that is configured to use a primary reference signal (i.e., a first directional signal) and a side reference signal (i.e., a second directional signal having at least one null directed to the side of the recipient) to calculate a side gain mask. The side gain mask includes gains for each of a plurality of frequency channels associated with the received sound signals.

Spatial pre-filtering in hearing prostheses

A method for processing sound that includes, generating one or more noise component estimates relating to an electrical representation of the sound and generating an associated confidence measure for the one or more noise component estimates. The method further comprises processing based on the confidence measure, the sound.

Sound processing with increased noise suppression

A method, including receiving a signal which includes speech data, processing the received signal to identify and/or predict one or more words in the speech data, and evoking a hearing percept based on the received signal, wherein the evoked hearing percept includes one or more modified words based on the identification and/or prediction of the one or more words.

Prediction and identification techniques used with a hearing prosthesis

A method for processing sound that includes, generating one or more noise component estimates relating to an electrical representation of the sound and generating an associated confidence measure for the one or more noise component estimates. The method further comprises processing, based on the confidence measure, the sound.

Presented herein are techniques for suppressing electrical interference caused by a feedback path(s) between an output channel and an input channel of an implantable medical device. In particular, the output channel carries stimulation signals that can pass through the feedback path(s) and appear in the input channel, thereby causing interference with any input signals carried by the input channel. The implantable medical device is configured to determine characteristics of the feedback and subsequently use the feedback characteristics to generate feedback compensation signals for application to the input channel.

Interference suppression in tissue-stimulating prostheses

Presented herein are signal processing techniques that integrate an adaptive filtering process with a parametric post-filter in the frequency domain to control the amount of body noise reduction in each of a plurality of frequency bands (e.g., tuneable body noise reduction in each frequency band). The parametric post-filter generates a gain mask that is tuned to responses of sensors to separate external acoustic sounds and body noises, while limiting distortions of own voice. The techniques presented herein can preserve external acoustic sound quality, attenuate own voice to a comfortable level without distortion, suppress body noises, and/or lower a noise floor of the output signal.

Body noise reduction in auditory prostheses

Sound processing based on a confidence measure

An audio processing pipeline, for an auditory prosthesis, includes: a common stage, including a common frequency analysis filter bank, configured to generate a common set of processed signals based on an input audio signal; and first and second stimulator-specific stages, responsive to the common set of signals and including first and second frequency-analysis filter banks, configured to generate first and second sets of processed signals adapted for the first and second hearing stimulators, respectively.

Audio processing pipeline for auditory prosthesis having a common, and two or more stimulator-specific, frequency-analysis stages

A method for determining the level of stimulation signals generated by an auditory prosthesis as a result of processing an electrical audio signal representative of sound is disclosed, the method comprising: converting the audio signal into a plurality of frequency-based signal components; analyzing one or more of the signal components to determine a quantity associated with the presence of a target signal in the analyzed signal component; and calculating the signal level based on the determined quantity when the determined quantity indicates a target signal is sufficiently present in the audio signal.

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The Patch, Australia

Adam A Hersbach