Abstract: Systems and method for pre-fitting a sound processing device for a user in accordance with embodiments of the invention are disclosed. In many embodiments, systems and methods can be executed by a computing device and include obtaining a hearing map representing the user's hearing, establishing a virtual signal processing path in the computing device which reflects a signal processing function of the sound processing device, updating parameters of the virtual signal processing path based on said hearing map, and passing an audio signal through the virtual signal processing path and playing back the processed audio signal to the user.

Abstract: Disclosed herein, among other things, are systems and methods for relaying wireless communication from ear-to-ear for hearing assistance devices using an intermediate device. One aspect of the present subject matter includes a method of using a first hearing assistance device in a first ear of a wearer to communicate with a second hearing assistance device in a second ear of the wearer using wireless communication, and determining whether quality of the communication between the devices has fallen below a programmable threshold such that communication can be improved by relaying the communication using an external intermediary device such as a smart phone. One method of determining the quality is to monitor a number of retransmissions that are used to maintain communication between the left and right devices.

Abstract: A hearing device includes an enclosure comprising a shell and a faceplate and is configured for at least partial insertion within an ear of a user. An antenna structure of the hearing device is oriented such that a direction of an electric field (E-field) of a propagating electromagnetic signal generated by the antenna structure is directed non-tangentially with respect to the user at the location of the user's ear. The antenna structure includes an antenna disposed in or on the faceplate and a ground plane at least partially supported by the faceplate. A battery and electronic circuitry are disposed within the shell. The electronic circuitry is powered by the battery and is electrically coupled to send and/or receive signals via the antenna structure.

Abstract: A method convolves a voice in a telephone call as binaural sound to an external sound localization point (SLP) that is familiar to a user. The method analyzes SLPs in prior telephone calls where voices in the prior telephone calls externally localized as binaural sound to the user and determines, based on the analysis, a SLP that is familiar to the user where the user previously localized the voices in the prior telephone calls.

Abstract: The present invention relates to a hearing aid allowing a self-hearing test and fitting, and a self-hearing test and fitting system using the same. The hearing aid comprises: a signal generating unit for receiving a command from an external terminal and enabling a receiver to generate a signal having a predetermined size and a predetermined frequency; a hearing storing unit for receiving information on whether a user can hear a signal generated by the signal generating unit and storing the user's hearing; and a fitting unit for adjusting an output of a sound according to the user's hearing. The hearing aid enables an accurate measurement of hearing to be made by directly measuring a user's hearing through the hearing aid, hearing measurement to be easily performed from time to time, and fitting of the hearing aid according to the user's hearing to be automatically made.

Abstract: The application relates to a hearing device adapted for being located at or in a first ear of a user, or to be fully or partially implanted in the head at a first ear of a user, the hearing device comprising a first input transducer for converting a first input sound signal from a sound field around the user at a first location, the first location being a location of the first input transducer, to a first electric input signal, the sound field comprising a mixture of a target sound from a target sound source and possible acoustic noise; a transceiver unit configured to receive a first quantized electric input signal via a communication link, the first quantized electric input signal being representative of the sound field around the user at a second location, the first quantized electric input signal comprising quantization noise due to a specific quantization scheme; a beamformer filtering unit adapted to receive said first electric input signal and said quantized electric input signal and to determine be

Abstract: Disclosed herein are systems and methods enabling self-fitting by a non-expert consumer. The method in some examples involves transmitting a wireless command by a computing device to a hearing device in-situ to produce a sequence of test audio signals corresponding to natural sound segments, while allowing the consumer to adjust fitting parameters based on perceptual assessment of hearing device output. The sound segments may represent a practical range of sounds within the normal human auditory range, with each sound segment selected to correspond to one or more fitting parameters of the programmable hearing device. The consumer is instructed to listen to the output of the in-situ hearing device and adjust controls on the personal computer's graphical user interface related to corresponding fitting parameters. The systems and methods disclosed herein allow dispensing or adjusting of hearing devices without requiring specialized instruments or clinical settings.

Abstract: Disclosed herein, among other things, are apparatus and methods for a binaurally coordinated frequency translation for hearing assistance devices. In various method embodiments, an audio input signal is received at a first hearing assistance device for a wearer. The audio input signal is analyzed and a first set of target parameters is calculated. A third set of target parameters is derived from the first set and a second set of calculated target parameters received from a second hearing assistance device using a programmable criteria, and frequency lowered auditory cues are generated using the third set of target parameters. The derived third set of target parameters is used in both the first hearing assistance device and the second hearing assistance device for binaurally coordinated frequency lowering.

Abstract: A smartphone displays an emoji that when activated plays sound that externally localizes in binaural sound to the listener. The emoji includes an indication that shows a location where the sound will externally localize as the binaural sound away from a head of the listener when the listener activates the emoji.

Abstract: In one embodiment, an audio processing system reduces reverberation in an audio signal. A first beamformer generates a first, directional beampattern, and a second beamformer generates a second beampattern. A signal-processing subsystem (i) processes the first and second beampatterns to generate suppression factors corresponding to the reverberation and (ii) applies the suppression factors to one of the first and second beampatterns to reduce the reverberation in the beampattern. In one implementation, the beampatterns are crossed-beam beampatterns, and the signal-processing subsystem generates the suppression factors based on coherence estimates for the beampatterns. In another implementation, the beampatterns are disjoint beampatterns, and the signal-processing subsystem generates the suppression factors based on short-time and long-time envelope estimates for the beampatterns.

Abstract: A method operates a binaural hearing aid system with first and second hearing aids. A first audio signal of the first hearing aid is divided into a first high-frequency component and a first low-frequency component. A second audio signal of the second hearing aid is divided into a second high-frequency component and a second low-frequency component. A first provisional division frequency is specified for the division of the first audio signal into the first high-frequency component and the first low-frequency component. A second provisional division frequency is specified for the division of the second audio signal into the second high-frequency component and the second low-frequency component. A division frequency is defined on the basis of the first provisional division frequency and the second provisional division frequency. The first and second audio signals are divided at the division frequency into respective high-frequency components and low-frequency components.

Abstract: Techniques are disclosed for position-robust multiple microphone noise estimation techniques. The position-robust noise estimation techniques can be used when receiving speech including diffuse noise sources, which is commonly encountered in noisy environments. The position-robust noise estimation techniques include detecting speech using the power level difference (PLD) and the coherence statistics (CS) between two microphone input signals. This multi-dimensional approach results in dual microphone noise estimation which is not affected by the position of the audio input device, resulting in more accurate detection of speech periods and more accurate noise estimation results. The position-robust noise estimate obtained from the techniques can then be used as part of a noise reduction system to reduce the levels of noise in noisy speech signals.

Abstract: A method of operating a binaural hearing aid system in order to provide an Interaural Level Difference (ILD) that is artificially increased beyond that provided naturally by the head shadow of the hearing aid system user and a binaural hearing aid system (100) for carrying out the method.

Abstract: In a binaural hearing aid system audio signals are transmitted between an antenna facility of a left ITE hearing aid and an antenna facility of a right ITE hearing aid. Binaural beam forming is based on a natural directivity of the pinna and/or based on a head shadowing effect. Each antenna facility has an antenna arrangement with a coil core made of magnetically permeable material, and extending along a longitudinal axis, a further electric hearing aid component, which emits electromagnetic interference radiation, and an at least partially planar shield made of magnetically permeable material. The shield is arranged between the antenna arrangement and the further hearing aid component transversely to the longitudinal axis of the coil core and the shield is arranged at a distance of 50 to 150 micrometers from the coil core, preferably 75 to 100 micrometers.

Abstract: An earpiece includes an earpiece housing and a location receiver disposed within the ear piece housing. The earpiece is configured to determine location of the earpiece using the location receiver. The ear piece is configured to generate three-dimensional sounds based on the location of the earpiece relative to location of one or more sound sources. The location receiver may be configured to receive signals from one or more pseudo satellites and use the signals to determine the location. The earpiece may be configured to receive signals from one or more terrestrial or ground-based transmitters and use the signals to determine the location. The ear piece may further include an inertial sensor disposed within the earpiece housing.

Abstract: A hearing device of a binaural hearing system is disclosed, the binaural hearing system comprising the hearing device and a contralateral hearing device. The hearing device comprises: a transceiver module for communication with the contralateral hearing device of the binaural system, the transceiver module configured for provision of a contralateral signal received from the contralateral hearing device; and a set of microphones comprising a first microphone and a second microphone for provision of a first microphone input signal and a second microphone input signal, respectively. The hearing device comprises: a beamforming module connected to the first microphone and the second microphone for processing the first microphone input signal, the second microphone input signal and the contralateral signal, the beamforming module configured to provide a first beamformed input signal. The hearing device comprises a beamforming controller connected to the beamforming module and the transceiver module.

Abstract: An earpiece includes an earpiece housing, a processor disposed within the earpiece housing, a memory operatively connected to the processor and disposed within the earpiece housing, and a plurality of software applications stored within the memory. The earpiece is configured to allow a user of the earpiece to select one of the plurality of software applications to run using the processor as a foreground application and allows for receiving user input into the foreground application.

Abstract: A hearing aid includes a casing configured to fit behind an ear of a user's head and against a side of the user's head. The hearing aid further includes a first proximity sensor associated with the casing and configured to generate a first signal that is proportional to a proximity of the casing to the ear and includes a processor coupled to the first proximity sensor and configured to select an operating mode from a plurality of operating modes in response to the first signal.

Abstract: The present disclosure relates to a hearing system. The hearing system comprises an implantable device configured to be implanted under the skin of a wearer and an external device configured to be positioned at an ear of the wearer. The external device comprises a transmit system configured to generate a wireless signal for being transmitted to the implantable device.

Abstract: A method of forecasting subjective efficacy of a hearing prosthesis implanted in a recipient, including subjecting a recipient to a plurality of temporally spaced aural training tasks, the aural training tasks evoking hearing percepts with the hearing prosthesis, obtaining first data indicative of the recipient's ability to hear with the hearing prosthesis based on performance by the recipient of the temporally spaced aural training tasks, and forecasting second data based on the first data, wherein the second data are indicative of the recipient's ability to hear with the hearing prosthesis at one or more temporal locations in the future.

Abstract: A system selects a recommended PSAP from several different available PSAP by screening a consumer by providing a plurality of questions regarding the consumer's hearing that each require a subjective response and receiving the subjective responses from the consumer. The questions can include questions relating to hearing difficulty during one-on-one conversations, hearing difficulty during conversations with women and/or children, hearing difficulty during conversations in restaurants and/or meetings, and presence of stress and/or agitating sounds. The recommended PSAP is automatically selected for the consumer based at least in part on the subjective responses. The recommended PSAP provides enhancement of high frequencies if the responses indicate difficulty hearing women and/or children, provides reduction of low frequencies if the responses indicate difficulty hearing in restaurants and/or meetings, and provides phase cancellation if the responses indicate presence of stress and/or agitating sounds.

Abstract: An intrusive binaural speech intelligibility predictor system receives a target signal comprising speech in left and right essentially noise-free and noisy and/or processed versions at left and right ears of a listener. The system comprises a) first, second, third and fourth input units for providing time-frequency representations of said left and right noise-free and noisy/processed versions of the target signal, respectively; b) first and second Equalization-Cancellation stages adapted to receive and relatively time shift and amplitude adjust the left and right noise-free and noisy/processed versions, respectively, and to provide resulting noise-free and noisy/processed signals, respectively; and c) a monaural speech intelligibility predictor unit for providing final binaural speech intelligibility predictor value SI-Measure based on said resulting noise-free and noisy/processed signals.

Abstract: A spacer attached to or being configured to be attached to a pull-out string for a hearing device is disclosed. The spacer comprises a contact portion adapted for being brought into contact with the wall of the ear canal of a hearing device user and hereby maintain the pull-out string in a distance from the wall of the ear canal.

Abstract: A hearing aid system and method of operating the hearing aid system, wherein the impedance of a hearing aid receiver is measured, the measured impedance is used to determine non-linearity characteristics of the receiver, and upon detecting that the non-linearity exceeds a threshold, the user is alerted and/or the receiver non-linearity is compensated.

Abstract: Eyewear for enhanced hearing includes a first sound detector positioned on or adjacent a first lens of the eyewear, and a second sound detector positioned on or adjacent a second lens of the eyewear. A processing unit positioned on the eyewear is in communication with the first and second sound detectors. The processing unit utilizes software that includes instructions for determining a time differential between detection of a sound by the first sound detector and detection of the same sound by the second sound detector. Because the time differential is proportional to the angular displacement of the sound from directly in front of the eyewear or person wearing the eyewear, sound signals corresponding to detected sounds having an angular displacement less than a stored maximum angular displacement value can be preferentially enhanced and transmitted via a data transmission module to a hearing aid device.

Abstract: Methods and systems for joining a wireless connection advertisement. The joining device connects to a commissioning device through a first wireless connection protocol. The first wireless connection protocol comprises a relatively low power connection. The commissioning device is configured to manage access to a fabric. The joining device also receives credentials, via the first wireless connection protocol, for connecting to a first wireless network having a second wireless connection protocol. Furthermore, the joining device attempts to join the first wireless network using the received network credentials.

Abstract: An alerting system for deaf or hard of hearing people comprises a wireless network with one or more transmitters adapted to detect events and, upon detecting an event, to transmit a wireless alerting signal to one or more receivers adapted to alert a user. The wireless network is adapted to send an alerting signal to an electronic device in order to allow the electronic device to function as a gateway between said wireless network and a hearing aid device.

Abstract: The present invention relates to an audio signal processing apparatus and an audio signal processing method to perform binaural rendering. To this end, provided are an audio signal processing apparatus to perform binaural filtering an input audio signal, including: a first filtering unit configured to filter the input audio signal by a first lateral transfer function to generate a first lateral output signal; and a second filtering unit configured to filter the input audio signal by a second lateral transfer function to generate a second lateral output signal, wherein the first lateral transfer function and the second lateral transfer function are generated by modifying an interaural transfer function (ITF) with respect to the input audio signal and an audio signal processing method using the same.

Abstract: A method performed by an electronic controller includes determining a charge level of a power supply configured to provide power to a medical device, and estimating, based on the charge level of the power supply, a first power supply life for operating the medical device according to a first mode. Further, the method includes estimating, based on the charge level of the power supply, a second power supply life for operating the medical device according to a second mode. As recited, operating the medical device according to the first mode has a different power use or consumption characteristic from operating the medical device according to the second mode. The method also includes generating a notification indicative of the first power supply life and the second power supply life.

Abstract: A system (202) for binaural signal processing. A first speaker (210) and a second speaker (220) are respectively mounted proximal to, and deliver respective first and second acoustic signals to, the left and right ears of a user. A first microphone (212) and a second microphone (222) are respectively mounted proximal to the left and right ears. A binaural processing device receives signals from the microphones and, based on the microphone signals, determines the first and second acoustic signals. The binaural processing device operates at a distance from both the left and right ears of the user. The speakers, microphones and the binaural processing device are connected by a signal network.

Abstract: An audio signal is transmitted from a transmitter to a receiver in a hearing device, particularly a hearing aid. A communication facility configured for transmitting and/or receiving the audio signal. A hearing device system has two hearing devices configured to transmit audio signals between the two hearing devices by way of their communication facilities in accordance with the method.

Abstract: An audio system processes a speech signal to maintain a target value of the speech intelligibility index (SII) while minimizing the overall speech level so that speech intelligibility is preserved across different environmental sound levels while possible distortions and overall loudness are mitigated. In one embodiment, a hearing aid processes a speech signal received from another device to maintain a target value of the SII while minimizing the overall speech level before mixing the speech signal with a microphone signal.

Abstract: A hearing aid includes: a microphone configured to receive sound; a processing unit configured to provide a processed audio signal for compensating a hearing loss of a user; a printed circuit board comprising a first layer; an antenna provided as an electrically conductive material on the first layer; a wireless communication unit for wireless communication; one or more flexible printed circuit board having a first flexible printed circuit board; and a polarization element configured for forming a polarization of the antenna, where the polarization element is on the first flexible printed circuit board.

Abstract: A pair of binaural hearing devices can dynamically assess and select a channel from a plurality of frequency channels suitable for ear-to-ear communication with each other. In various embodiments, the hearing aids can each initiate a channel assessment by calibrating a channel quality threshold and transmitting a packet including the channel quality threshold to the other hearing aid. The other hearing aid can then receive the packet, measure the quality parameter on the packet, and compare the measured value of the quality parameter to the received channel quality threshold to determine whether the channel is suitable for the ear-to-ear communication.

Abstract: In one embodiment, the present invention provides a sound processing device with a binaural input and binaural output, where “binaural input” means at least one microphone mounted in or near each ear of the device user, and “binaural output” means at least one output signal directed to each ear. The device may be comprised of two parts connected by a wired or wireless link.

Abstract: Various system embodiments comprise a plurality of devices adapted to wirelessly communicate with each other. The plurality of devices includes a battery-operated hearing assistance device adapted to be worn by a person. The hearing aid device includes a signal processing circuitry connected to a microphone and a receiver. At least one of the plurality of devices includes a link quality management device adapted to assess a link quality for a first wireless communication channel, provide channel metrics indicative of the assessed quality for the first wireless communication channel, and adjust wireless communication over the first wireless communication channel using the channel metrics for the first wireless communication channel.

Abstract: Aspects of the present disclosure involve a system and method for communicating with multiple devices using a single radio. In one embodiment, a wearable device is configured to use a single radio for near-field and far-field communications. In another embodiment, the wearable device is configured to include an adaptable radio filter that enables the near-field and far-field transmission. The wearable device may further include an adaptable radio IC whose physical layer parameters are adjusted based in part of the transmission mode of a received signal.

Abstract: An eyewear device includes a noise cancelling microphone array, and corresponding method for the same. The eyewear device and its method of use facilitates human-machine interaction using speech recognition by reducing unwanted noise that corrupts the desired speech and thereby reduces errors in speech. The eyewear device includes an eyeglasses frame, an array of microphones coupled to the eyeglasses frame, the array of microphones including at least a first microphone and a second microphone, the first microphone coupled to the eyeglasses frame about a temple region, the temple region can be located approximately between a top corner of a lens opening and a support arm, and providing a first audio channel output, and the second microphone coupled to the eyeglasses frame about an inner edge of the lens opening, and providing a second audio channel output. Embodiments can further include a third and fourth omni-directional microphone, providing a third and fourth audio channel, respectively.

Abstract: A signal processing technique the noise suppressing performance of which is more improved than conventional one is provided. A first component extraction unit 14 extracts a non-stationary component ^?S(A)(?, ?) derived from a sound coming from a target area and a stationary component ^?S(B)(?, ?) derived from an incoherent noise from a power spectrum density ^?S(?, ?) of the target area through processing of time average. A second component extraction unit 15 extracts a non-stationary component ^?N(A)(?, ?) derived from an interference noise and a stationary component ^?N(B)(?, ?) derived from an incoherent noise from a power spectrum density ^?N(?, ?) of a noise area.

Abstract: A binaural hearing system comprising left and right hearing devices is provided, each comprising an input unit providing an electric input signal representing an environmental sound; a noise reduction system for estimating and reducing a noise component of the electric input signal; antenna and transceiver circuitry allowing the exchange of data between the hearing devices. The binaural hearing system is—in a mode of operation, where a sound source is predominantly audible at a first one of the hearing devices—configured to transmit the estimate of the noise component determined in a second one of the hearing devices to the first hearing device and to use said estimate to reduce the noise component in the electric signal of the first hearing device and to provide a noise reduced signal in the first hearing device. Thereby improved noise reduction is provided for use, e.g. in hearing aids, in non-symmetric acoustic situations.

Abstract: A portable audio device, which includes active noise cancellation circuitry, a hearing aid compliant magnetic radiator, and a speaker/earpiece, is surrounded by ambient acoustic noise. The active noise cancellation circuitry provides an anti-noise signal at an input of the speaker to control/reduce the ambient acoustic noise outside of the device. In addition, the active noise cancellation circuitry provides an inverse anti-noise signal to an input of the magnetic radiator. The magnetic fields produced by the speaker driven by the anti-noise signal and the magnetic radiator driven by the inverse anti-noise signal cancel each other out through phase cancellation such that a hearing aid using a telecoil coupled to the audio device does not produce significant audio waves based on either of these signals. Other embodiments are also described.

Abstract: A hearing device is proposed comprising at least one microphone (1), at least one analog-to-digital converter (2), a signal processing unit (3), a communication unit (6) for establishing and/or maintaining a communication link to a second hearing device, and a detection unit (7) for determining a communication link quality. The at least one microphone (1) is operationally connected to the signal processing unit (3) via the at least one analog-to-digital converter (2), and the communication unit (6) is operationally connected to the signal processing unit (3). By providing said detection unit (7), which is operationally connected to the communication unit (6), together with a processing scheme selectable in the signal processing unit (3) in accordance to a determined communication link quality, a binaural hearing system with two hearing devices is for able to adjust its mode in line with the communication link quality, and therewith its capacity.

Abstract: An audio processor (200) for a hearing device has a noise estimator (100), an adaptive noise canceller (110), and a dynamic range compressor (120) to provide a gain according to a signal strength of an input signal. A signal strength processor (130) determines a signal strength dependent noise cancellation parameter, and the adaptive noise canceller provides noise cancellation of the input signal according to an estimated noise from the noise estimator, and according to the signal strength dependent noise cancellation parameter, so as to provide less noise cancellation when the input signal has higher signal strength than when the input signal has a lower signal strength. This helps retain the desirable environment or ambient type noise, present when the signal strength is higher, while providing more cancellation of undesirable circuit type noise when there is low input signal strength.

Abstract: Sound processors and systems including sound processors are disclosed.

Abstract: A method and a device for analyzing hearing aid device settings of a first hearing aid device by a second hearing aid device. The first and the second hearing aid device each have an acousto-electric converter and an electro-acoustic converter. The method includes the step of acoustically coupling the electro-acoustic converter of the first hearing aid device to the acousto-electric converter of the second hearing aid device by a coupling device. In a further step, the acousto-electric converter of the first hearing aid device is exposed to an acoustic test signal. In one step, an acoustic output signal of the electro-acoustic converter of the first hearing aid device is detected by the acousto-electric converter of the second hearing aid device. In a further step, the detected acoustic output signal is analyzed.

Abstract: An in-ear monitor that can be customized for particular applications and individuals includes a housing formed from a body and a cover. A dynamic driver is mounted in a cavity in the housing on an angled mounting flange. The dynamic driver is acoustically coupled to a trumpet-shaped sound collector. The trumpet-shaped sound collector is coupled to a main sound bore that exits an opening in a nozzle portion of the body that is inserted into the ear canal of a user. An ambient sound port collects ambient sound and couples it to the sound bore. An additional bass port increases the bass response of the monitor. Ear impressions are used to customize the body of the monitor to the ear of a user and the location of the bass and ambient sound ports can be altered for different applications.

Abstract: A hearing aid is fitted to an individual and/or the individual is trained in hearing with the hearing aid. In a first step a stimulus signal is provided. In a second step, the stimulus is presented to the individual. In a third step, a response of the individual in regard to the stimulus is obtained. In a fourth step a hearing aid parameter is adjusted based on the response. In an alternative or additional fourth step, a further stimulus signal is selected based on the response. The second step of presenting the stimulus signal comprises the sub-steps of obtaining a first and second signal based on the stimulus signal. In a further sub-step, the first signal is processed and presented by the hearing aid. Simultaneously, in a further sub-step, the second signal is presented by a supplementary loudspeaker for improving the stimulus presentation in regard to direct sound.

Abstract: A method for operating a binaural hearing system including first and second hearing devices, each including an input transducer, a signal processing unit, an output transducer and a link unit for exchanging information between the devices. Operating the first hearing device according to a first processing scheme, operating the second hearing device according to a second processing scheme, monitoring an acoustic situation by the hearing devices, generating a request for coordinating the two hearing devices if one hearing device detects an acoustic situation asking for coordinating the two processing schemes of the hearing devices, the hearing device detecting such an acoustic situation being an ipsi-lateral hearing device the other being a contra-lateral hearing device, activating a link between the devices for transmitting the request to the contra-lateral hearing device, and changing the processing scheme in at least one of the devices in accordance with the request.

Abstract: Disclosed is a device having an audio interface configured to generate from the audio signal an outgoing audio signal for supplying to a loudspeaker component. The audio interface is configured, in generating the outgoing audio signal, to apply dynamic range compression to the audio signal. Device software is configured to receive an incoming audio signal and generate an audio signal from the incoming audio signal. The audio signal generated by the software is supplied to the audio interface for outputting by the loudspeaker component and is also used as a reference in audio signal processing. Generating the audio signal comprises the software applying initial nonlinear amplitude processing to the incoming audio signal to modify its power envelope. The modified power envelope is sufficiently smooth to be substantially unaffected by the dynamic range compression when applied by the audio interface.

Abstract: A new hearing aid is provided in which signals that are received from an external device, such as a spouse microphone, a media player, a hearing loop system, a teleconference system, a radio, a TV, a telephone, a device with an alarm, etc., are filtered in such a way that a user can localize the sound source.