46 results about "Audiometer" patented technology

The technology of active noise reduction (ANR) is incorporated into audiometry testing in a variety of formats. Analog feedback, digital feedback, adaptive feedforward, and adaptive feedback noise control schemes are presented for use in audiometry to reduce the ambient noise heard by the test subject, allowing subject testing in higher ambient noise fields. Audiometer test signals are appropriately compensated so the test results are accurate and comply with existing calibration standards for audiometers. Existing audiometry headphone technologies are modified so that ANR can be accomplished while satisfying existing standards for audiometric testing. Embodiments are also defined for alternate headphone arrangements that may not conform to current (1997) audiometric testing standards but provide sufficient performance advantages to warrant new standards for audiometry testing in the future.

An interface adapted for use with an audiometer, including a digital wireless interface supported by a base unit and a remote unit wherein the base unit receives signals from the audiometer and provides the signals to the remote unit via the digital wireless interface.

An improved hearing-related analysis programming system with a host computer for providing at least one hearing aid program and having at least one personal computer memory card international association (PCMCIA) defined port in combination with a PCMCIA Card inserted in the port and arranged for interacting with the host computer for controlling hearing-related analysis or programming of a hearing aid. The host computer provides power and ground to the PCMCIA Card and provides for downloading the hearing aid programming software to the PCMCIA Card upon initialization. A microprocessor on the PCMCIA Card executes hearing-related analysis or the programming software. A hearing aid interface for adjusting voltage levels and impedance levels is adapted for coupling signals to the hearing aid being programmed. Systems for performing hearing-related analysis include a portable audiometer system on a PCMCIA Card and operable with a portable host computer to analyze hearing of a patient, and a real-ear system on a PCMCIA Card and operable with a portable host computer to analyze output from a hearing aid in a patient's ear.

The invention provides a listening assisting method and system based on a mobile device. The listening assisting method includes the steps of outputting testing voices at a plurality of frequencies to test listening thresholds of users at the multiple frequencies, and generating listening curve graphs according to the listening thresholds of the users under the multiple frequencies; judging the listening loss types of the users according to the listening curve graphs, and selecting corresponding prescription selecting formulas according to the listening loss types; determining fitting parameters of the users according to the prescription selecting formulas and the listening curve graphs; collecting voice signals, and conducting sound recognition rate improving processing on the voice signals according to the fitting parameters of the users for playing. By means of the listening assisting method and system, the listening loss conditions of the users can be tested through the mobile device, the listening curve graphs of the users can be automatically recorded, automatic fitting can be carried out according to the different listening curve graphs of the users, listening compensation is carried out in a target mode, and the audiometry function of an audiometer, the fitting function of hearing-aid fitting software and the function of a hearing-aid are integrated.

An interface adapted for use with an audiometer, including a digital wireless interface supported by a base unit and a remote unit wherein the base unit receives signals from the audiometer and provides the signals to the remote unit via the digital wireless interface.

The invention relates to a portable hearing testing and hearing-aid testing and matching integrated system which is characterized by comprising a main body, a control unit arranged in the main body, a hearing test device connected with a phase circuit and a machine of the control unit, a hearing-aid testing and matching device, a wireless internet device and a remote expert database sharing device. The hearing test device comprises an internal hearing meter, a hearing-aid testing and matching program and an external hearing device. The hearing test device is used for inputting comprehensive hearings (sound signals of loudness decibels heard by the patient under different frequencies) of detected air conduction and bone conduction related to a hearing-aid worn by a patient and to the hearing-aid testing and matching device directly coupled with the hearing test device. According to the technical scheme, the portable hearing testing and hearing-aid testing and matching integrated intelligent system established on the basis of a notebook computer organically couples the internal hearing meter and the hearing-aid testing and matching program into a device so that the hearing testing environment and the hearing-aid wearing environment are completely coincident, meanwhile, the comprehensive hearings of the detected air conduction and the bone conduction are completely seamlessly input to the hearing-aid testing and matching, thus the actual use effectiveness of the hearing-aid is increased, the error that the general mute hearing testing environment is not coincident with the hearing-aid wearing environment is avoided, the time required for respectively carrying out hearing testing and the hearing-aid testing and matching is greatly reduced, and equipment cost and service cost are reduced.

A portable audiometer for performing hearing testing enclosed within a patient response mechanism housing is disclosed. The audiometer may include a printed circuit board containing circuitry, plugs or other connectors for wired or wireless headphones and bone conductor, a battery charging unit, and one or more buttons for indicating response to pure tone and other stimuli, including, but not limited to noise, speech, and visual and audio instructions and graphical representations of objects or concepts used in a comprehensive hearing test. The instrument can be connected via a wired or wireless interface to a variety of controlling devices, including PC's, Personal Digital Assistants (PDA's), cellular phones, smartphones, including hybrid phone and PDA, and other devices such as media players, gaming systems, personal audio players, and other devices that can operatively communicate with the portable device.

An evoked response audiometer method and apparatus in which a patient receives an auditory stimulus signal comprising a carrier frequency which is periodically amplitude modulated and frequency modulated whereby the stimulus is at least substantially frequency specific, the brain potential signals of the patient evoked by the auditory signal being sampled to determine whether phase locking to the modulated auditory signal has occurred, the auditory signal being selectively controlled to advance or delay one modulation with respect to the other modulation to cause enhancement of the evoked response to the auditory stimulus.

A reference transmitter (602) and reference receiver (604) are provided for testing the performance of a semi-implantable hearing aid. In a calibration configuration, an audiometer (606) is used to provide a reference signal via a headphone jack output (608) to the reference transmitter (602). The reference transmitter (602) provides an RF transmit coil output via lead (610) and coil (612) to the reference receiver (604). The reference receiver (604) provides an output signal that is correlated to a microphone signal to a hearing aid analyzer (616). The transmitter (602) and receiver (604) can be separately used to analyze the internal and external portions of a semi-implantable hearing aid using conventional audiometers and hearing aid analyzers.

An audiometer having an air-conduction receiver, a bone-conduction receiver, a masking receiver and an audiometer body is provided, in which the air-conduction receiver, the bone-conduction receiver, and the masking receiver are respectively provided with serial ROMs in which identification information and calibration information of each receiver are stored. The audiometer body comprises a misconnection detector for detecting misconnection of each receiver, a calibration period judging mechanism for judging a calibration transition period of each receiver, and a correction amount computer for computing a correction amount of sound pressure based on the information stored in the serial ROMs.

The invention relates to a fetal heart audiometer adopting Bluetooth for transmission. The fetal heart audiometer consists of two parts, namely sound detection equipment and a mobile phone for receiving sound, wherein the sound detection equipment is used for amplifying weak fetal heartbeat and transmitting a sound signal to the mobile phone through Bluetooth; an APP (Application) installed on the mobile phone can be used for controlling the amplification factor of the fetal heart audiometer, recording the received sound and transmitting the recorded sound to a network. When at least two detection heads are installed on the detection equipment, a user can be reminded to reasonably move the position of the fetal heart audiometer, so that the heartbeat of a fetal is received more accurately. The APP can estimate the health condition of a mother according to the heartbeat history of the fetal and can provide corresponding suggestions of diet, work, rest and the like.

The invention relates to a device for determining acoustically evoked brain potentials in brainstem audiometry from electrodes applied to the head of a subject, where the device comprises a plurality of electrodes, i.e. at least one pickup electrode and a reference electrode, to be applied at different points of the head, where the device comprises means for determining the impedance between the electrodes and the head as well as means fur visually indicating a level of impedance or delivering this information to the connected audiometer.

An audiometer having an air-conduction receiver, a bone-conduction receiver, a masking receiver and an audiometer body is provided, in which the air-conduction receiver, the bone-conduction receiver, and the masking receiver are respectively provided with serial ROMs in which identification information and calibration information of each receiver are stored. The audiometer body comprises a misconnection detector for detecting misconnection of each receiver, a calibration period judging mechanism for judging a calibration transition period of each receiver, and a correction amount computer for computing a correction amount of sound pressure based on the information stored in the serial ROMs.

Provided is a hearing-ability measurement device and a method thereof for measuring a masking curve more correctly and in a shorter time.A test sound generation unit generates a test sound including a probe and a masker, and outputs the test sound from a test sound output unit. A perception examination unit examines whether or not the subject perceives the probe. An adjustment unit adjusts acoustic properties of the test sound, based on a result of the examination. Here, kinds of adjusted acoustic properties are different between the situation of prove perception success and the situation of prove perception failure. As a result, the masking curve is directly tracked and the measurement is performed more correctly and in a shorter time.

An interface adapted for use with an audiometer, including a digital wireless interface supported by a base unit and a remote unit wherein the base unit receives signals from the audiometer and provides the signals to the remote unit via the digital wireless interface.

The invention relates to a pure tone audiometric and psychophysical tuning curve detecting system which comprises a computer, a multimedia sound card, a handheld USB (universal serial bus) handle, a miniature loudspeaker and an earplug. At least two buttons are arranged on the handle, the miniature loudspeaker comprises at least two electricity-sound transducer, and an input end of the miniature loudspeaker is connected with the sound card while an output end of the miniature loudspeaker is connected with the earplug; an audiometer platform is arranged in the computer and comprises a hardware driving system and a test executing system; and the hardware driving system comprises a sound card driver connected with the sound card and a multimedia programming interface connected with the handle, and the test executing system comprises a pure tone audiometric detecting module and a psychophysical tuning curve detecting module. The pure tone audiometric and psychophysical tuning curve detecting system not only can carry out complete pure tone audiometry, but also can carry out psychophysical tuning curve detection, and can be widely applied to comprehensive detection for an auditory system of a testee.

The invention relates to a portable programmable multichannel psychoacoustics audiometer. The portable programmable multichannel psychoacoustics audiometer comprises four modules which are respectively stand-alone Windows application software with a customized universal serial bus (USB) driver, a USB2.0 controller for communication between a host personal computer (PC) and a field programmable gate array (FPGA), an FPGA chip for generating pure tones and noise and performing channel output, a digital-analog converter, a filter, an attenuator and an amplifier for outputting audio frequency and the like. A core module of the audiometer is the FPGA module, and core design of the FPGA module is generation of high-resolution pure tones and white noise digital signals. A multichannel mechanism is adopted, and the hearing ability of a hearing-impaired patient for the environment can be tested; compared with an ordinary audiometer, programmed customization can be performed on audiometer functions according to the actual impaired conditions of hearing disabilities, the hearing-impaired conditions of the patients can be measured and assessed more accurately, and the portable programmable multichannel psychoacoustics audiometer is higher in flexibility and cost performance.

The invention discloses a self-service hearing testing system and a hearing aid fitting system. The self-service hearing testing system comprises a main hearing testing monitoring center and several sets of self-service hearing testing devices arranged in a plurality of self-service hearing testing rooms, wherein the main hearing testing monitoring center is at least used for monitoring the progress of the self-service hearing testing performed by a subject by using the self-service hearing testing devices in the self-service hearing testing rooms. The self-service hearing testing devices include self-service hearing testing control terminals, automatic audiometers, transponders and hearing testing earphones. The self-service hearing testing control terminals are used for self-service operations by the subject so as to achieve the hearing testing and uploading the testing results to the main hearing testing monitoring center. The automatic audiometers are in communication connection with the self-service hearing testing control terminals. The transponders are in communication connection with the signal input terminals of the automatic audiometers and are used for pressing the transponders to feedback to the automatic audiometers when the subject hears a sound. The hearing testing earphones are in communication connection with the audio output terminals of the automatic audiometers. The self-service hearing testing system and the hearing aid fitting system can greatly improve the inspection amount of outpatient services and reduce operators.

A computer-implemented method for reducing undesired crosstalk signals on an inactive channel of a device comprising the steps of: (i) determining system volume levels required to achieve a range of desired audio output attenuation levels on an active channel of the device; (ii) determining a crosstalk compensation signal comprising a signal amplitude and associated phase shift required to reduce undesired crosstalk on the inactive channel of the device for each desired audio output attention level in the range of desired audio output attenuation levels; and (iii) generating a desired audio output attenuation level on the active channel of the device by generating a signal at the determined system volume level required to achieve said desired audio output attenuation level, and generating a contemporaneous crosstalk compensation signal on the inactive channel of the device by generating a signal at the determined signal amplitude and associated phase shift required to reduce the undesired crosstalk on the inactive channel.

The application provides a system and method for pure tone auditory threshold test skill training. The skill training cost can be reduced. The system comprises a subject model assembly and an audiometer panel assembly, a pure tone auditory threshold auditory mode selected by an auditory tester is received, a bone conduction earphone and / or an air conduction earphone is worn for a subject model, and the position information of the bone conduction earphone and / or the air conduction earphone is sensed; mapping relation is inquired to obtain the position information mapped by the selected pure tone audiometry mode, whether the sensed position information is matched with the obtained position information or not is judged, and a sensed position information judgment result is prompted; channel information is received, the mapping relationship is inquired to obtain the channel information mapped by the received pure tone audiometry mode, whether the received channel information is matched withthe obtained channel information or not is judged, and a set channel information judgment result is promoted; and the audiometer panel assembly is used for receiving channel information set by an audiometer according to the selected pure tone hearing threshold audiometry mode and the received channel information is outputted to the subject model assembly.

A computer-implemented method for reducing undesired crosstalk signals on an inactive channel of a device comprising the steps of: (i) determining system volume levels and associated signal amplitudes required to achieve a range of desired audio output attenuation levels on an active channel of the device; (ii) determining a crosstalk compensation signal comprising a signal amplitude and associated phase shift required to reduce undesired crosstalk on the inactive channel of the device for each desired audio output attention level in the range of desired audio output attenuation levels; and (iii) generating a desired audio output attenuation level on the active channel of the device by generating a signal at the determined system volume level and associated signal amplitude required to achieve said desired audio output attenuation level, and generating a contemporaneous crosstalk compensation signal on the inactive channel of the device by generating a signal at the determined signal amplitude and associated phase shift required to reduce the undesired crosstalk on the inactive channel.

The invention discloses a speech audiometry device, and the speech audiometry device includes a host computer, an audiometer and an audiometric earphone. An answering device includes a single-chip microcomputer, a verification-storage module, a recognition-conversion module and an operation screen. The single-chip microcomputer is connected with the host computer, the audiometric earphone is connected with the audiometer, the single-chip microcomputer of the answering device is connected with the audiometer, and the verification-storage module, the recognition-conversion module and the operation screen are all connected with the single-chip microcomputer. The invention also provides an audiometry method, and the audiometry method includes the following steps: setting parameters, making preparation, carrying out audiometry, answering, repeating, etc. The answering device of the invention can be used together with the conventional audiometer in a matching way in the actual use process, and is operated by a subject independently, with strong subjectivity, small cooperation error, more accurate audiometry results and high reliability. The operation screen of the invention is in a distributed type structure and various in forms, capable of meeting various use requirements and users, convenient to use and operate and easy to realize an highly-efficient audiometry system.

An audiometer including a processor controlled test signal generator is adjustable so as to produce a uniform output signal when coupled with a transducer load. Each transducer set to be used with the test signal generator includes recordable indicia in written or electronic form, upon which correction values for adjusting the electronic signal output of the audiometer module to produce a desired sound output from the each transducer in the transducer set. When the transducer set is connected to the audiometer module, the correction values are either retrieved automatically from the electronic indicia, which may be an EEPROM, or are input to the processor manually by a user through an interface such as a keyboard. These correction values are then used by the processor to dynamically adjust the output of the audiometer to correct for sound output response deviation of each transducer in the transducer set.

The invention provides a sonometer capable of visually and intuitively transmitting information about the output grade of an inspection sound to an inspector. The sonometer used for determining the hearing grade of a testee is provided with an output grade display unit used for displaying the information about the output grade of the inspection sound through changes of background colors. The output grade display unit displays the different background colors of a background (1) of an audiogram in a picture (10) of a liquid display part (7) according to output grade ranges in advance. For example, the background color is white when the output grade is within the range (14) lower than 80 dB; the background color is yellow when the output grade is within the range (15) from 80 dB to 100 dB; and the background color is red when the output grade is within the range (16) higher than 100 dB.

The invention relates to the technical field of hearing aids, and discloses a multifunctional audiometer with a speech audiometry function, and a corresponding speech audiometry method and device forfitting a hearing aid, computer equipment and a computer storage medium. The audiometer comprises a memory, a processor, a communication bus and a speech audiometry program which is stored in the memory and used for fitting a hearing aid, the communication bus is used for realizing communication connection between the processor and the memory, and the audiometer is characterized by comprising a speech audiometry device used for fitting the hearing aid.

The invention discloses a portable audiometer with an automatic calibration function, which comprises a tablet computer, a core processor, a Bluetooth module, a digital-to-analog conversion module, avolume audio controller, an audio amplifying circuit and an earphone, an application program for hearing test is installed in the tablet computer, the core processor is connected with the tablet computer through the Bluetooth module, and the Bluetooth module is connected with the digital-to-analog conversion module through the earphone. Wherein the core processor is used for transmitting test datain an application program to the core processor, the core processor receives the test data and outputs a corresponding frequency signal to the digital-to-analog conversion module connected with the core processor, and the digital-to-analog conversion module converts the frequency signal into an audio signal and transmits the audio signal to the volume audio controller; and the volume audio controller performs volume control, transmits the volume to the audio amplifying circuit, amplifies the volume by the audio amplifying circuit, and transmits the volume to the earphone for output. The tester has an automatic calibration function, can enable the hearing detector to maintain accurate audio signal frequency and sound pressure level, guarantees accurate hearing test results, and is light, small, exquisite and convenient to carry.