Cochlear Limited

Phyu Phyu Khing

Brett Anthony Swanson

Michael Goorevich

Stefan Jozef Mauger

Bastiaan Van Dijk

Matthijs Johannes Petrus Killian

Disclosed embodiments include systems and methods of configuring, e.g., a hearing prosthesis comprising a beamforming microphone array having two or more microphones. Some embodiments include (i) storing a plurality of sets of beamformer coefficients in memory, where each set of beamformer coefficients corresponds to one of a plurality of zones on a recipient's head, and (ii) configuring the hearing prosthesis with a set of beamformer coefficients that corresponds to the zone on the recipient's head where the beamforming microphone array is located. Other embodiments include determining a set of beamformer coefficients based on magnitude and phase differences between microphones of the beamforming array, where the magnitude and phase differences are determined from a plurality of head related transfer function measurements for the microphones.

Neutralizing the effect of a medical device location

Techniques for addressing impulse sounds in an auditory prosthesis. The auditory prosthesis comprises a sound processor that is configured to convert received sound signals into output signals for use in generating stimulation for delivery to a recipient of the auditory prosthesis. The sound processor comprises an impulse-aware gain system that is configured to generate a time-variable gain for the application to the audio signal. The time-variable gain applied to the audio signal is dependent on both a level of the audio signal and the presence or absence of impulse sounds in the audio signal.

Impulse-aware sound processing

Presented herein are techniques for providing tinnitus relief to recipients of a hearing prosthesis. In accordance with embodiments presented herein, a hearing prosthesis comprises a tinnitus relief system that is configured to generate a tinnitus masker signal that comprises a plurality of discrete (separate) components. The tinnitus relief system is configured to inject the components of the tinnitus masker signal directly into a sound processing path so that the masker components are combined with different processed portions of a channelized sound signal. The channelized sound signal and the components of the tinnitus masker signal are used to generate one or more output signals for use in compensation of a hearing loss of a recipient of the hearing prosthesis.

Tinnitus masking in hearing prostheses

A computer-implemented method comprising: determining one or more features of a subject signal; revising one or more control signals on the basis of the one or more features; modifying a level of the subject signals based on the control signals. At least one of the features is determined by: comparing a given one of the subject signals against a boundary signal to produce a corresponding given boundary comparison signal; and summarizing the behavior of the given boundary comparison signal over a time interval.

Feature-based level control using loudness growth functions

An apparatus for processing an input sound signal, the apparatus including: gain circuitry configured to control a gain based on a plurality of respective sub-signals of the input sound signal; and an amplification apparatus configured to adjust the amplification of all the plurality of amplitudes based on the common gain.

Post-filter common-gain determination

Feature-based level control

An apparatus for processing an input sound signal, the apparatus including: gain circuitry configured to control a gain based on a plurality of respective sub-signals of the input sound signal; and an amplification apparatus configured to adjust the amplification of all the plurality of amplitudes based on the gain.

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North Sydney, Australia

Phyu Phyu Khing