Abstract: A hearing assistance system having a hearing assistance device to be worn at one of a user's ears and a scanning device, the hearing assistance device and the scanning device both having an interface for wireless data exchange between the hearing assistance device and the scanning device, wherein the hearing assistance device is adapted for wireless data exchange with an external device, wherein the scanning device is adapted to scan for wireless signals from the external device and to transmit, once such signals have been received by the scanning device, a message to the hearing assistance device for notifying the hearing assistance device of the availability of the external device, and wherein the hearing assistance device is adapted to decide, upon receipt of such notification message from the scanning device, whether on not to initiate wireless data exchange with the external device.

Abstract: Provided is a measuring apparatus capable of measuring a vibration amount weighted with characteristics of vibration transmission to a human ear and capable of evaluating correctly an electronic device having a vibrator. A measuring apparatus 10 configured to evaluate an electronic device 100 that transmits vibration sound to a human ear by pressing a vibrator 102 held in a housing 101 thereto, including an ear simulator 50 that mimics a human ear, and a vibration detection unit 55 disposed on a periphery 52 of an artificial ear canal 53 formed in the ear simulator 50.

Abstract: A new hearing aid system is provided that facilitates determination of listening performance of a user of the hearing aid system and adjustment of a hearing aid for improved listening performance.

Abstract: At least one processor can detect a volume of a sound input to an upper microphone. The at least one processor can determine whether or not at least one of a sound emission hole for a rear speaker and a sound collection hole for the upper microphone is clogged, based on the detected volume. The at least one processor can give a notification about a result of determination.

Abstract: An exemplary system includes a sound processor associated with a patient, a first microphone communicatively coupled to the sound processor and configured to detect an audio signal presented to the patient and output a first output signal representative of the audio signal, and a second microphone communicatively coupled to the sound processor and configured to detect the audio signal presented to the patient and output a second output signal representative of the audio signal. The sound processor is configured to 1) receive the first and second output signals, 2) determine that a difference between the first and second output signals meets a threshold condition, and 3) perform, in response to the determination that the difference between the first and second output signals meets the threshold condition, a predetermined action associated with the quality level of the first microphone. Corresponding systems and methods are also disclosed.

Abstract: A method or apparatus for delivering audio programming such as music to listeners may include identifying, capturing and applying a listener's audio perception characteristics (sometimes referred to as the listener's Personal Waveform Profile) to transform audio content so that the listener perceives the content similarly to how the content would be perceived by a different listener. An audio testing tool may be implemented as software application to identify and capture respective listeners' Personal Waveform Profiles. A signal processor may operate an algorithm processing source audio content using the respective listeners' Personal Waveform Profiles to provide audio output based on a difference between different profiles.

Abstract: A tinnitus masking system for use by a person having tinnitus The system comprises a sound delivery system having left and right ear-level audio delivery devices and is configured to deliver a masking sound to the person via the audio delivery devices such that the masking sound appears to originate from a virtual sound source location that substantially corresponds to the spatial location in 3D auditory space of the source of the tinnitus as perceived by the person. The masking sound being represented by left and right audio signals that are converted to audible sound by the respective audio delivery devices.

Abstract: Method for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) including communicating via each one of multiple available signal channels. Data packets exchanged between a tester and DUT as a normal part of a communication link initiation sequence are exchanged in such a manner that the tester transmits via all available channels simultaneously, thereby ensuring that a properly working DUT will always transmit in response. For example, in the case of a Bluetooth low energy transceiver, advertisement, scan request and scan response data packets can be used in such manner.

Abstract: The present invention relates to a hearing aid fitting device, and an objective thereof is to improve usability thereof. To achieve this object, the fitting device (1) of the present invention comprises a hierarchical classification database (12) and an adjustment data determination component (20). A plurality of pieces of adjustment difference data obtained by the fitting of a hearing aid is hierarchically classified according to similarity in the amount of adjustment and is saved in the hierarchical classification database (12). The adjustment data determination component (20) determines fine adjustment data for the hearing aid by selecting a cluster from among a plurality of clusters in each hierarchical layer.

Abstract: A system and method for providing earpieces for a user includes an inventory of standard earpieces having a plurality of different parameters, and a device for making a non-contact measurement of the user's ear, such as a camera or scanner. An ear-piece is selected from the inventory based on the non-contact measurement of the user's ear.

Abstract: A measurement system includes an ear model including an artificial auricle (51) and an artificial external ear canal (53); and an air-conducted sound gauge (200) that measures air-conducted sound in the artificial external ear canal (53), and while an acoustic device (1) that includes a vibrating body and transmits sound to a user by contacting the vibrating body to a human auricle is placed in contact with the ear model (50) of the measurement system, the measurement system executes control for measurement, with the air-conducted sound gauge, of harmonics in an air-conducted component generated by a pure tone emitted by the acoustic device (1) and control to display the result of the measurement on a display.

Abstract: Individual adjustment of a hearing apparatus, and in particular a hearing aid, is improved by testing the auditory sensory memory of a user of the hearing apparatus. At least one test result is obtained and the hearing apparatus is adjusted in dependence on the at least one test result. The test person must detect, perceive and be able to reproduce changes in a signal.

Abstract: A device includes an ear occlude, an output transducer that is acoustically coupled to an ear canal of a wearer of the device, a voice microphone configured to generate a first electrical signal that is proportional to a voice-generated sound pressure at the microphone, and signal processing circuitry, electrically coupled to the output transducer and the microphone, including a compensator configured to generate, from the first electrical signal, a second electrical signal, and output the second electrical signal to the output transducer, wherein the compensator is tuned to cause GOE, a ratio of a sound pressure within the ear canal to a voice-generated sound pressure at a mouth reference point when the ear is occluded and electronically-aided to be approximately equal to GU, a ratio of the sound pressure within the ear canal to the voice-generated sound pressure at the mouth reference point when the ear is unoccluded.

Abstract: A practitioner device for facilitating at least one of testing and treatment of at least one auditory disorder is disclosed. The practitioner device includes a user interface configured for receiving an input from a practitioner. Further, the practitioner device includes a communication interface configured for communicating information between the practitioner device and at least one of a mobile device and another practitioner device over at least one of a wired communication channel and a wireless communication channel, wherein the information is based on the input, wherein the information corresponds to at least one of at least one auditory test and at least one auditory treatment procedure, wherein the mobile device facilitates at least one of testing of at least one auditory disorder and treatment of at least one auditory disorder.

Abstract: A vibration pickup device for measuring an electronic device that transmits sound to a user via vibration transmission by pressing a vibrating body held in a housing against a human ear includes a plate-shaped vibration transmission member and a vibration pickup joined to a portion of the vibration transmission member. The vibration transmission member is mountable on a peripheral portion of an artificial external ear canal, formed in an ear model unit modeled after a human ear, and includes a hole in communication with the artificial external ear canal.

Abstract: A hearing device and a method for fitting the hearing device are provided. The method for fitting a monaural hearing device involve obtaining audiograms of both ears, and adjusting an amplification gain based on the audiograms of both ears, in which the audiograms comprise an audiogram of a first ear for wearing the monaural hearing device and an audiogram of a second ear not wearing the monaural hearing device.

Abstract: An analysis filter bank decomposes a microphone signal into sub-band signals, a gain unit applies a frequency-dependent gain to the sub-band signals, and a synthesis filter bank converts the amplified sub-band signals into a signal, which is then output by a receiver. A first adaptive filter of a feedback canceller provides feedback compensation signals adapted to compensate acoustic feedback from the receiver to the microphone, whereby the feedback compensation signals are subtracted from corresponding signals from the sub-band signals. A second adaptive filter of the feedback canceller estimates cross-frequency signal components resulting from aliasing of signal components from one sub-band into one or more neighboring sub-bands caused by non-ideal sub-band signal decomposition in the analysis filter bank with overlapping sub-bands. Thereby, the first adaptive filter is adapted in dependence of the estimated cross-frequency signal components.

Abstract: Disclosed herein, among other things, are methods and apparatus for identifying one or more defective hearing aids. The present system provides a dichotic sound to the wearer that can be used to sense whether the aids are properly operating. Different types of dichotic sounds can be presented within the scope of the present subject matter. In various applications a Huggins pitch, a binaural edge pitch, a binaural coherence edge pitch, a Fourcin pitch or a dichotic repetition pitch is used for the dichotic sound. The pitch may be a pure-tone or complex-tone pitch. Various pure-tone frequencies and complex-tone fundamental frequencies may be used and may be customized for a particular application. In various applications, a dichotic sound is formed using left and right sounds each of which includes a noise and a desired signal component. The present system can be realized in a variety of implementations.

Abstract: A power dongle for a hearing aid includes conductive wires, each wire having a computing device end and a hearing aid end. A first connector is connected to the computing device end of each of the plurality of conductive wires to releasably couple to an input/output port of the computing device and a second connector is connected to the hearing aid end of each of the plurality of conductive wires to releasably couple to an interface of the hearing aid, the second connector configured to deliver at least one of a first power supply and an audio signal from the computing device to the interface of the hearing aid.

Abstract: A method of acoustically fitting a hearing aid comprises providing a plurality of audible tones, each having a predetermined frequency through stereo headphones. The tones are provided at specific sound pressure in each ear. The patient changes the relative sound pressure in each ear until a perceived direction of source of the tone is in front of the patient. The amplification or attenuation requirements of a hearing aid are modified based on the difference in the sound pressures required for the left and right ears of the patient for perceived directional sameness for each frequency band-pass channel.

Abstract: The present invention relates to recipient fitting of a hearing device. An embodiment of the present invention determines the transmission loss for sound applied to the recipient by the hearing device. Separate gains are then determined for compensating for the determined transmission loss and the measured hearing loss of the recipient. For example, in an embodiment, the hearing device may compensate for transmission losses in a 1:1 manner (i.e., the transmission loss in 100% compensated for). The hearing device may apply a different gain to compensate for the hearing loss, such as a gain that is a fraction (e.g., 33-55%) of the measured hearing loss.

Abstract: A mobile device for facilitating testing and treatment of one or more auditory disorders is disclosed. A sound synthesizer of the mobile device may be configured to generate one or more sound signals based on one or more parameters. Further, an audio port of the mobile device may be configured for interfacing with an acoustic transducer configured to generate acoustic waves based on the one or more sound signals. Furthermore, a controller of the mobile device may be configured to control one or more of, the sound synthesizer and the audio port, for facilitating at least one of testing and treatment of the one or more auditory disorders.

Abstract: A hearing instrument includes: a first microphone; and a control and processing circuit comprising: a first audio input channel configured to receive a first microphone signal, a second audio input channel configured for receipt of an audio signal, a signal processor for receipt and processing of the first microphone signal and the audio signal according to a hearing loss of a user, a power supply configured to provide a first microphone supply voltage for the first microphone, a first controllable switch comprising a first switch control terminal, the first controllable switch configured to selectively connect the first microphone supply voltage to, and disconnect the first microphone supply voltage from, the first microphone in accordance with a first switch control signal, and a first output port configured to provide the first switch control signal to the first switch control terminal.

Abstract: A vibration pickup device for measuring an electronic device that transmits sound to a user via vibration transmission by pressing a vibrating body held in a housing against a human ear includes a plate-shaped vibration transmission member and a vibration pickup joined to a portion of the vibration transmission member. The vibration transmission member is mountable on a peripheral portion of an artificial external ear canal, formed in an ear model unit modeled after a human ear, and includes a hole in communication with the artificial external ear canal.

Abstract: Methods and systems of interactive online fitting of a hearing aid by a non-expert consumer without requiring a clinical setup are disclosed. In one embodiment, the system includes an audio generator for delivering test audio signals at predetermined levels to a non-acoustic input of a programmable hearing aid in-situ, and a programming interface for delivering programming signals to the hearing aid. The consumer is instructed to listen to the output of the hearing device in-situ and to interactively adjust fitting parameters according to a subjective assessment of audible output representative of the test audio signal. In one embodiment, the online-based fitting system comprises a personal computer, a handheld device connected to the personal computer, and a fitting application hosted by a server. In one embodiment, remote customer support personnel may communicate with a hearing aid worn by the consumer and interactively control fitting parameters.

Abstract: An organizer for wearable electronic pieces or wireless communication jewelry. The pieces may be of an enhanced ergonomic form, particularly suitable for long-term wear. For example, a uniquely located actuator may be provided and each piece may be configured to distribute a significant portion of its bulk away from the isolated location of a user's ear without sacrifice to audio or communicational integrity. Further, the securing extension that accommodates the actuator and secures the piece to the user's ear may occupy less than about 0.25 inches in width behind the user's ear. Additionally, the organizer manages unique protocols of recharge for a potential plurality of pieces. Additionally, charging takes place through a support mechanism which accommodates a discrete securing extension portion of a piece in a substantially matching fashion. Further, a casing of the piece is substantially displaced from the accommodating location.

Abstract: An assisting listening device having audiometry function includes an earphone, a testing signal generator, a feedback generator and a control box. The testing signal generator is controlled by a digital signal processor of the control box to provide a testing signal to a speaker of the earphone. The feedback generator will generate a feedback signal to the digital signal processor of the control box subject to the testing signal, enabling the digital signal processor to evaluate the user's hearing threshold level so that the user can adjust the functioning of the assisting listening device optimally subject to the evaluation result.

Abstract: A member includes a fastener for removable fixation of a housing of a hearing aid, and a hole for removable insertion of a sound tube of the hearing aid in sound proof engagement with the member.

Abstract: A method for fitting verification of a hearing device has been disclosed. The current invention can be used to evaluate and verify a fitting for a hearing device on individual ears. It uses the hearing device itself as testing apparatus. No additional equipment is required other than the fitting computer and interface which are already required and exist for the device fitting. The method for fitting verification with in situ hearing test consists of at least two steps. One is to obtain patient's unaided hearing thresholds, which can be either in situ hearing thresholds or conventional audiogram. The second step is to measure patient's aided in situ hearing thresholds. An in situ functional gain is then calculated based on the unaided and aided in situ thresholds. The in situ functional gain can be used to evaluate or verify if intended target gains have been achieved with the device.

Abstract: The present invention relates to a device and a method for detecting a change in characteristics of a hearing aid and informing a user of the change. In one embodiment, a first input audio signal and an second amplified audio signal transmitted from the a hearing aid are received via a communication unit. Simulation is conducted of amplifying of the first input audio signal according to pre-stored auditory information stored in advance, and the processed simulated amplified first input audio signal is compared with the amplified audio signal. An alarm signal is output when a difference between the processed simulated amplified first input audio signal and the second amplified audio signal is greater than a predetermined threshold.

Abstract: A hearing device includes: a microphone for converting audio into an audio signal; a preprocessing unit for analog processing of the audio signal and having an input and an output, wherein the input is connected to an output of the microphone; an A/D converter for converting the processed analog audio signal into a digital audio signal, the A/D converter having an input and an output, wherein the input of the A/D converter is connected to the output of the preprocessing unit; and a processing unit for digital processing of an output from the A/D converter, wherein the processing unit is connected to the preprocessing unit, and is configured to apply a first transfer function to the audio signal in a first mode of operation, or a second transfer function with a cutoff frequency to the audio signal in a second mode of operation, depending on a control signal.

Abstract: An input audio signal is equalized to form an output audio signal on the basis of an intended listening sound pressure level, the output capabilities of a particular playback device, and unique hearing characteristics of a listener. An intended listening level is first determined based on the properties of the audio signal and a mastering sound level. The intended listening level is used to determine an optimal sound pressure level for the particular playback device based on its capabilities and any master volume gain. These two levels are used to determine how much louder to make individual frequencies based on data pertaining to human auditory perception, either standardized or directly measured. The audio is further compensated on the basis of hearing loss data, again either standardized or directly measured, after optionally extending the signal bandwidth. The final, compensated audio signal is sent to the playback device for playback.

Abstract: The application relates to a hearing assistance device and to a method of performing a real ear measurement. The method comprises providing a first controlled acoustic feedback path from an output transducer to a measurement input transducer via a standard acoustic coupler; generating a first probe signal; estimating and storing a first estimate of the first controlled acoustic feedback path; and providing a second controlled acoustic feedback path from the output transducer to the measurement input transducer via the residual volume between the ITE part of the hearing aid device and the user's eardrum; generating a second probe signal; estimating and storing a second estimate of the second controlled acoustic feedback path; and determining a real ear to coupler difference from said first and second acoustic feedback estimates. An alternative and relatively simple method of determining an RECD-value in hearing assistance device of a particular user is thereby provided.

Abstract: A method of assessing hearing characteristics of a subject is provided. The method includes determining a hearing capability of the subject based on responses of the subject to a series of sounds presented to the subject. Each sound corresponds to a presence, absence or irrelevance of a predetermined plurality of features. The method further includes assigning the subject to one of a predetermined plurality of classes based upon the responses of the subject, each of the plurality of classes being derived from hearing tests performed on a plurality of other subjects.

Abstract: A method determines the classification of an audio signal in dependence on a comparison of two difference sums of audio features over time periods of different length. Thus, an adequately exact yet quickly reacting adaptation of the classification in changing hearing situations is ensured. The method is advantageously used in a hearing aid. The audio signal is processed in different ways on the basis of the classification.

Abstract: A hearing instrument has an integral injection-molding casing. The hearing instrument fixes the internal components in an integral casing that is simple in design, production, and assembly; requires few components; and is easy to handle. Accordingly the hearing instrument contains an integral casing and a frame arranged within the casing. The casing has an assembly opening through which the frame is pushed into the casing. Additionally, the casing has a fixation opening oriented perpendicular to the insertion direction, which fixation opening interacts with a fixation device arranged on the frame in order to fix the frame in the casing. This provides a simple fixation mechanism. The fixation opening can be applied as a bore after the production of the casing, and so the casing has no undercuts and can therefore be produced in an injection-molding method. The fixation device can be embodied as a bolt. The bolt can be integrally molded onto the frame.

Abstract: The application relates to a test device for a speaker module of a listening device, the speaker module comprising a speaker unit for converting an electric output signal to an output sound. The application further relates to a test system and to a data update device. An object of the present application is to provide an alternative scheme for identifying a receiver (speaker) in a listening device, e.g. a hearing aid. The problem is solved in that the test device being a separate device adapted for being electrically connected to the speaker module in a test situation, but not during normal operation of the listening device. An advantage of the invention is that it provides a flexible alternative to a receiver identification solution that is integrated into the listening device.

Abstract: A hearing aid (1) comprising a receiver (2) and at least one first microphone for transforming an acoustic signal surrounding a hearing aid user into an electrical signal, where the hearing aid comprises an ear plug part prepared for fitting tightly into the car canal (11) of a hearing aid user such that an inner volume is formed in the inner part of the ear canal between the car plug part and the car drum of the hearing aid user. The car plug part comprises a second microphone (3) arranged for transforming an acoustic signal in the volume into an electrical signal. The hearing aid comprises estimating means for estimating the effective size of the air leak between the inner volume and the surroundings based on the acoustical signal detected in said volume by said second microphone (3) from a known acoustical signal below 1000 Hz generated by the receiver. The hearing aid further comprises notification means for notifying the hearing aid user if the size range of the air leak is outside a predefined range.

Abstract: A hearing system (1) capable of assisting a user of the hearing system (1) to find a location where satisfactory hearing performance is achievable is described. The hearing system (1) comprises at least one hearing device (11, 12) with an input transducer (20), an output transducer (40), and a processing unit (30) operatively connected to the input transducer (20) as well as to the output transducer (40). The hearing system (1) further comprises a first means (50) for determining from a signal of the input transducer (20) at least one parameter (60) representative of a current acoustic environment at a current location, and a second means (40, 200, 201) for indicating to a user of the hearing system (1) a degree of suitability of the current location to achieve satisfactory hearing performance based on the at least one parameter (60).

Abstract: Systems, methods, and apparatuses may be used to test devices using a portable device. A portable device is a tablet computer, a smart phone, or other type of device. In embodiments, the different components of the portable device are utilized to perform tests on a medical device such as a hearing prosthesis or other type of medical device. For example, portable device components such as accelerometers, magnetometers, gyroscopes, microphones, speakers, etc. are used to provide testing stimuli and/or record the responses from the hearing prosthesis to the testing stimuli. The portable device is used to generate testing stimulus and record the response from the device being tested using the various components of the portable device. Analysis of the output of the medical device can be performed to determine a remedy to improve operation of the device.

Abstract: The selection of hearing aids can be based on many factors which are beyond a simple compensation for the hearing impairment of the user. The process of selecting hearing aids can be time consuming and resource intensive. By rapidly and effectively providing the necessary context to hearing-impaired individuals to evaluate the benefit provided by various hearing aids, without the traditional time consuming fitting trial, the purchase of a device can be expedited and provide the necessary correction to negate the effects of auditory deprivation. A system an method for enabling improved hearing aid appraisal and selection processes is provided.

Abstract: A hearing aid for automatically controlling directivity is provided. The automatic directivity controlling hearing aid controls an amplification factor and delay time for each of a plurality of acoustic signals that are generated from a plurality of microphones, to thus automatically enhance directivity so that a speech sound can be strongly heard among ambient sounds that are generated in the vicinity. Therefore, even any directional voices may be heard as accurate voices by enlarging intensity of a speech sound in contrast to ambient noise.

Abstract: A computer-implemented method is provided for conducting a hearing assessment of a patient. The method includes: presenting a plurality of objects on a display of a computing device, where each object produces an audio output in response to a stimuli from the patient and the audio output by the objects varies in frequency and intensity amongst the plurality of objects; prompting a patient with a visual cue to classify objects producing sound; receiving an input from the patient for each object in the plurality of objects, where the input indicates whether the audio output by a given object was perceptible to the patient; and generating an audiogram for the patient using the input received from the patient.

Abstract: Systems, devices and methods relating to auditory devices having an ear tip with a neck portion configured to extend beyond the end of a speaker assembly when assembled are provided. Embodiments provide for an ear tip with enhanced flexibility for insertion and removal and while the ear tip is in use. Additionally, embodiments may provide for a fastening means that allows the ear tip to be easily detachable from a speaker assembly, while also providing sufficient securing force for the ear tip to secure the tip to the speaker assembly while the tip is subjected to forces resulting from insertion, removal or otherwise normal use of the auditory device.

Abstract: Hearing aids and a method of acoustically fitting the hearing aids comprises providing a plurality of audible tones, each having a predetermined frequency through a pair of hearing aids being worn by a patient. The tones are provided at specific sound pressure in each ear. The patient changes the relative sound pressure in each ear until a perceived direction of source of the tone is in front of the patient. The amplification or attenuation requirements of a hearing aid are modified based on the difference in the sound pressures required for the left and right ears of the patient for perceived directional sameness for each frequency band-pass channel.

Abstract: A method for testing a hearing device (1, 4) comprising at least one microphone unit (2) and a receiver unit (3) is disclosed. The method comprising the steps of positioning the hearing device (1) at a predefined position in relation to an accessory device (4) comprising a microphone (5) and a loudspeaker (6), generating a first sound signal (7) by the loudspeaker (6), recording the first sound signal (7) by the microphone unit (2), generating a second sound signal (8) by the receiver unit (3), the second sound signal (8) being at least partly dependent on the recorded first sound signal (7), recording the second sound signal (8) by the microphone (5), evaluating the recorded second sound signal (8), and at least triggering further action based on results of evaluating the recorded second sound signal (8) in case the results do not conform to predefined expectation. Furthermore, an arrangement for testing a hearing device (1, 4) is also disclosed.

Abstract: The present invention relates to a hearing aid fitting device, and an objective thereof is to improve usability thereof. To achieve this object, the fitting device (1) of the present invention comprises a hierarchical classification database (12) and an adjustment data determination component (20). A plurality of pieces of adjustment difference data obtained by the fitting of a hearing aid is hierarchically classified according to similarity in the amount of adjustment and is saved in the hierarchical classification database (12). The adjustment data determination component (20) determines fine adjustment data for the hearing aid by selecting a cluster from among a plurality of clusters in each hierarchical layer.

Abstract: In some embodiments, a method for processing output of at least one microphone of a device (e.g., a headset) to identify at least one touch gesture exerted by a user on the device, including by distinguishing the gesture from input to the microphone other than a touch gesture intended by the user, and by distinguishing between a tap exerted by the user on the device and at least one dynamic gesture exerted by the user on the device, where the output of the at least one microphone is also indicative of ambient sound (e.g., voice utterences). Other embodiments are systems for detecting ambient sound (e.g., voice utterences) and touch gestures, each including a device including at least one microphone and a processor coupled and configured to process output of each microphone to identify at least one touch gesture exerted by a user on the device.

Abstract: Provided is a wireless communication device having speech recognition, speech translation, and hearing aid functions, which includes: an ITE (In-The-Ear) type radio transceiver including a microphone that receives an external voice, an ITE (In-The-Ear) type radio signal processor that processes radio data received from the microphone, a receiver that converts electrical signals from the radio signal processor into sound pressure, a volume controller that controls the intensity of the sound pressure, and a coil antenna for short-range wireless communications; and a portable radio repeater including a portable communication device that relays signals transmitted from the coil antenna of the ITE type radio transceiver, a coil antenna for short-range wireless communications with the ITE type radio transceiver, and a radio frequency (RF) antenna for two-way wireless communications with a portable radio repeater owned by another conversation partner.

Abstract: A hearing aid is disclosed, which, in a test mode, can determine the impedance of the transducer that stimulates the anatomy of the patient. Impedance may be determined by simultaneous determination of the current flowing through the transducer and the voltage across the transducer. In some cases, the output amplifier of the hearing aid includes two outputs, with one being a scaled and/or summed replica of the other. The amplifier is driven with a periodic signal with a particular frequency and a known peak voltage. The periodic signal may be sinusoidal. The primary output of the amplifier is electrically connected to the transducer, with a known voltage given by the peak input voltage and a known gain of the amplifier. The current from the secondary output of the amplifier is measured. In an example measurement scheme, the secondary output is sent through a rectifier and then through a low-pass filter.