103 results about "SOUND STIMULATION" patented technology

The invention provides a tinnitus detecting method and a tinnitus therapeutic apparatus. The method includes the steps of conducting pure tone threshold detection of two ears, selecting the tested ear according to the result of the pure tone threshold detection, conducting tinnitus frequency matching of the tinnitus ear through a three-point forced choice method to obtain the tinnitus frequency, and conducting tinnitus loudness matching of the tinnitus ear with the tinnitus frequency as the datum to obtain a tinnitus perception threshold. By means of a sound stimulation strategy, the tinnitus therapeutic apparatus comprises a computer readable medium, a detection control unit, a treatment control unit, a headset and a feedback unit. The detection control unit is used for conducting tinnitus detection and involves pure tone threshold detection, tinnitus frequency matching and tinnitus loudness matching. The treatment control unit processes audio files for treatment according to the result of the tinnitus detection, and therefore the individual treatment scheme is obtained. By means of the method and the apparatus, the tinnitus detection time is shortened, and the fault tolerance capacity is improved; by means of the tinnitus therapeutic apparatus, diagnosis and treatment are integrated, the treatment efficiency is improved, and the treatment cost is reduced.

The invention discloses a tinnitus acoustic treatment device comprising a fitting device and a treatment device. The fitting device is connected with the treatment device. Fitting software is disposed in the fitting device. The treatment device comprises a DSP chip, a sound collector, a signal generator, a controller and a sound output device. The sound collector and the signal generator are connected with the DSP chip through the controller. The sound output device is connected with the DSP chip through the controller. Embedded software with an embedded frequency shift technology is disposed in the DSP chip. The tinnitus acoustic treatment device allows for both active fine hearing compensation and adaptive sound stimulation.

The invention discloses a tinnitus sound diagnosis and treatment method. Tinnitus diagnosis and treatment methods, including S101: Establishing patient files; S102: Doctors conduct questionnaires on patients through questionnaires and assessment scales, and patients fill in the questionnaires and assessment scales by choosing, and doctors judge the overall situation of tinnitus of patients ; S103: The doctor checks the patient's auditory function; S104: Input and calculate the test data, establish a test result table and compare the data; S105: Output the test data, graphics, images and tinnitus test data, and choose whether to print; S106: According to Desensitization fitting is performed on the detected data. The desensitization fitting includes acoustic stimulation verification and therapeutic sound matching. The selected sounds form a formula, and the formula includes standard stimulation sounds, TRT sounds or background music and other sound types; S107: Combine the sound The treatment formula is output to the treatment device, and the patient is treated with sound through the treatment device.

A hearing aid gain determination system includes: a biological signal measurement section for measureing an electroencephalogram signal; a sound group determination section for determining a frequency of a sound group including first, second and third sounds; a sound pressure determination section for determining sound pressures of the first to third sounds so that the respective sound pressures are less than a threshold and that the first to third sounds consecutively decrease; an output section for presenting the first to third sounds at the determined frequency and sound pressures; a characteristic amount extraction section for extracting a characteristic amount concerning time-frequency information of an event-related potential in a time range after presenting the first to third sounds; a gain determination section for determining a hearing aid gain for the frequency of the sound stimulation group against a predetermined criterion based on the characteristic amounts.

The invention discloses a method for carrying out semantic voice search by sound stimulation induced ERP (event related potential). The method comprises the following steps that (1) various kinds of semantic related sound stimulation are sequentially exerted to users, and the users generate corresponding original electroencephalograms on various kinds of semantic related sound stimulation; (2) the sound simulation is exerted, meanwhile, the original electroencephalograms of the users generated by the exerted sound simulation are collected, and the original electroencephalograms are subjected to amplification and digital processing; and (3) the electroencephalograms obtained in the step (2) are subjected to ERP detection analysis, and the required one-kind semantic sound of the users is determined in various kinds of semantic related sound stimulation exerted in the step (1) according to the ERP detection analysis results. The method for carrying out the semantic voice search by sound stimulation induced ERP has the advantage that the required one-kind semantic sound of the users can be fast and accurately searched by utilizing differences of ERP induced by targeted one-kind semantic sound simulation and non-targeted semantic sound simulation of the users.

The invention discloses a device for quantitative monitoring indicators of a patient with awareness during the general anesthesia operation, which comprises: an EEG signal surface electrode, a filter circuit, an EEG amplification circuit, a brain evoked potential amplifier, an analog-to-digital converter, a computer for calculating the brain 40Hz auditory evoked steady state response index and a sound stimulating circuit. Two brain evoked potential signals and an EEG signal curve which are generated by the computer are stored in a data cache; the sound stimulating circuit comprises: a 40Hz sound modulation circuit and a sound amplification circuit; the computer is synchronous with four sound stimulus, two brain evoked and EEG digital signals are obtained every 100ms and then the data cache is cleared. The device has the following advantages and positive effects: the 40Hz auditory steady state technology is different from other auditory evoked potentials, the major advantage thereof is that the rhythm of the stimulus is synchronous with the position of the wave peak of auditory middle latency, thus forming the resonance effect, improving the signal intensity and regularity, allowing the extraction of the evoked potential to be easier and strengthening the probability of the clinical practical application of the evoked potential technology.

The invention discloses a noise Y labyrinth device, which comprises a labyrinth and a control unit. The labyrinth comprises a bottom plate, partition plates, a top cover and arms, the arms comprise an outer arm and an inner arm, and the partition plates comprise an inner partition plate and an outer partition plate; an indicator lamp and a sound stimulation generator are disposed at an outer portof the outer arm, an infrared scanning device is disposed at an inner port of the outer arm, the indicator lamp, the sound stimulation generator and the infrared scanning device are connected with the control unit via a bus, and the other end of the control unit is connected with a first signal lamp and a second signal lamp which are used for experimenters to observe; and the top cover covers above the inner arm, the outer arm and the partition plates. The invention further discloses a control method for the noise Y labyrinth device. Shortcomings that a traditional electric Y labyrinth severely injures animals, wastes time and labor during working, and the like are overcome, noise is used as a stimulation source, simple and labor-saving operation is realized, influences of human factors are reduced, and furthermore, accuracy of experimental results is improved.

A system and method for generating frequency-multiplexed synthetic sound-speech stimuli and for detecting and analyzing electrical brain activity of a subject in response to the stimuli. Frequency-multiplexing of speech copora and synthetic sounds helps the composite sound to blend into a single auditory object. The synthetic sounds are temporally aligned with the utterances of the speech corpus. Frequency multiplexing may include splitting the frequency axis into alternating bands of speech and synthetic sound to minimize the disruptive interaction between the speech and synthetic sounds along the basilar membrane and in their neural representations. The generated stimuli can be used with both traditional and advanced techniques to analyze electrical brain activity and provides a rapid, synoptic view into the functional health of the early auditory system, including how speech is processed at different levels and how these levels interact.

An exemplary uncomfortable sound pressure estimation system includes: a sound stimulation scheduling section configured to determine points in time of outputting a group of sound stimulations so that times of measurement for event-related potentials in response to the second sound and third sound arrive after a predetermined noise-lingering time has elapsed since a next point of occurrence of periodic noise; an event-related potential characteristic amount extraction section configured to receive the points in time of outputting the sound stimulation group, and extract a characteristic amount of an event-related potential of the electroencephalogram signal based on each point of outputting the group of sound stimulations as a starting point; and an uncomfortable sound pressure determination section configured to determine an uncomfortable sound pressure for the frequency of the sound stimulation group.

The present invention provides a method and system of auditory evoked heart rate variability analysis having advantage of simply analytical process and portability. The disclosed method mainly includes the following steps of: stimulating the auditory system of a person by a sound through a sound transmission device, capturing an electrocardiogram signal of the person, performing analog-to-digital conversion of the electrocardiogram signal, selecting the peaks of the electrocardiogram signal and transforming the qualified peaks to a consecutive peak signal, and performing spectrum analysis to the peak signal in frequency domain, and obtaining the difference of the spectral parameters before and after the evoked sounds. Moreover, the sound further is selected from the group consisting of noise, short tone burst, click, and any other sound with the intensity of 30 dB to 100 dB. By comparing the heart rate variability analysis before or after sound stimulation in order to get the differences, the disclosed method and system of auditory evoked heart rate variability analysis can evaluate a changing index of stimulated autonomic functions.

The present invention discloses a method for arousing and recovering the hearing sense of deaf child and the system thereof. Said method makes the child widely receive the aural stimulation to set up the language consciousness after his hearing ability is compensated, the method including a plurality of the relevant steps such as revealing pictures, playing sound program and demonstrating cartoons to the child; said system comprises a data processing device, a data inputting device, a data outputting device, as well as a multi-media database, a grouping module, an executing module, a receiving module, a judging module and a feedback module. The method for arousing and recovering the hearing sense of deaf child and the system of the invention can mobilize sufficiently a plurality of sensing organs of the deaf child to exercise his hearing sense to be aroused and recovered, increasing the interest of the deaf child in the arousing exercise of hearing sense, intensifying the effect of the arousing exercise of hearing sense of the deaf child and shortening the time needed for arousing his hearing sense.

The invention discloses an eye wearable system based on fatigue detection and awakening stimulation, which comprises a wearing body, an image acquisition unit, a head motion trajectory acquisition unit, a light stimulation unit, a sound stimulation unit, a vibration stimulation unit and a control unit, wherein the wearing body is used for being worn to the eye part; the image acquisition unit is used for acquiring the eye part image in real time; the head motion trajectory acquisition unit is used for acquiring the head motion real-time trajectory information; the light stimulation unit is used for lighting to stimulate the eye part; the sound stimulation unit is used for making a sound; the vibration stimulation unit is used for providing a specific sequence of vibration stimulation; andthe control unit comprises a controller in communication connection with each above unit respectively for judging a human fatigue degree through the received real-time eye part image and the head motion real-time trajectory information, outputting an awakening stage and making light stimulation and/or sound stimulation and/or vibration stimulation signals according to the awakening stage. While the awakening stage is outputted, sound, light and vibration stimulation is provided to improve the awakening degree, and the system is high in integration and is suitable for individual detection and group detection.

The invention relates to a bone conduction earphone based on dual-channel frequency difference and short sound stimulation double actions; wherein a control circuit comprises an input interface of a sound frequency analog signal, two analog-to-digital converters for carrying out analog-to-digital conversion to an interface output signal, a sound frequency signal processor which receives the output of the analog-to-digital converters and carries out segment treatment of frequency difference of left and right sound channels and short sound stimulation, two digital-to-analog converters, a power amplifier and two bone conduction earphones; the sound frequency signal processor is a field programmable gate array and is connected with a liquid crystal display, a keyboard and a memorizer, and carries out display control to the liquid crystal display and makes response to a control signal of the keyboard respectively. The earphone utilizes the comprehensive effect of combination of the frequency difference of the dual channels and the short sound stimulation to induce brain waves of users, and can be used as a sound frequency broadcasting device matched with a computer or a learning machine, so as to lead students to study effectively under relax state, and other auditory systems are not damaged.

The invention discloses a wearable weariness detection and intervention system. The wearable weariness detection and intervention system comprises a dressing device body, an image collecting module for collecting the eye movement data of a wearer, an infrared lighting source, a head movement data collecting module for collecting the head movement data of the wearer, a waking promoting module and acore treatment module, wherein the waking promoting module comprises a light stimulating unit, a sound stimulation unit and a shaking stimulation unit; and the core treatment module comprises an eyemovement data analyzing module, a head movement data analyzing module, a fatigue degree analyzing module and a control module. According to the wearable weariness detection and intervention system, through integrated assessment of eye movement and head movement information, the fatigue degree of human bodies can be decided intelligently, and according to the fatigue grade of the human bodies, prewarning is performed; and waking promotion stimulation is performed in a sound, light and vibration combination manner, so that the fatigue degree of the human bodies is reduced, and the warning degreeand the operation capacity are increased. Based on a human eye blinking analyzing algorithm of plus and gradients, data analysis is performed, and the blinking state judging robustness, disturbance resistance and the efficiency can be improved.

The invention discloses a frequency recognition testing method. The method includes the steps that a, sound is subjected to band allocation; b, a main frequency is determined from the bands for testing; c, sound of three adjacent frequencies including the main frequency is determined as stimulation sound, and auditory thresholds of the three frequencies are measured; d, testing sound is given sequentially, and testees make a judgment; e, the frequency interval is gradually reduced till the testees cannot distinguish the sound, and the minimal recognition bandwidth can be determined. The minimal frequency recognition range of the testees can be tested, frequency value selection in auditory sense recognition sensitivity testing is promoted, the workload of clinical hearing function check is reduced, and meanwhile the sensitivity degree of the testees on the frequency of sound stimulation is measured. The frequency recognition testing method has a great effect on diagnosis and treatment on tinnitus, epicophosis and dizziness and has great significance on the aspect of an audio output device, the auditory sense is effectively protected, hearing damage is avoided, and the satisfaction and comfort of popular headphone use are improved.

The invention discloses an electric brain stimulator based on a serial port and an implementation method thereof and belongs to the field of medical equipment. The electric brain stimulator based on the serial port comprises an electric brain stimulation control section and a communication device, wherein the electric brain stimulation control section comprises a designer and a player; the designer is a tool for designing processes of the electric brain stimulation control section and provides processes for a user to voluntarily design the electric brain stimulation control section; the player serves as a computer display tool of the electric brain stimulator and is used for playing pictures, sound stimulation and the like; and the communication device serves as a tool for communication interaction of a computer and an electroencephalograph (electroencephalogram acquisition system) and is used for the computer to send digital trigger signals synchronous with stimulation to the electroencephalograph.

The invention discloses a device and method for detecting social communication decision behaviors of mice. The device comprises a semitransparent experiment box body and a signal input and output control module arranged at the top of the experiment box body, wherein the signal input and output control module comprises a controller, a memory, a lighting system, an infrared camera system and a soundstimulation system; the controller is connected with the memory through an I/O interface, switch control signal input ends of the lighting system, the sound stimulation system and a reward delivery device are connected with an output end of the controller, and the signal input and output control module is provided with a power supply interface used for being connected with external power supply;and a vent hole is formed in the experiment box body, at least two fences are arranged in the experiment box body, and audio data are stored in the memory. The device and method for detecting the social communication decision behaviors of the mice can be used for researching the incubation period and the decision accuracy of each social decision of the mice, fine behaviors, moving tracks, speed and time proportion of the mice in an experimental device can be automatically recorded, and data are provided for evaluating the normal state of the mice.

An exemplary uncomfortable sound pressure evaluation system consecutively presents sound stimulation groups to a user. Each sound stimulation group includes a sound stimulation, and the sound stimulation groups differ in frequency from one another. The system includes: an extraction section configured to extract, for each sound stimulation group, information concerning event-related potential relating to the sound stimulation; an estimation section configured to estimate an uncomfortable sound pressure (UCL) of the user from the information concerning event-related potential; and a correction section configured to determine whether the estimated UCL is higher than a predefined maximum UCL or not, and if a proportion of those determination results which indicate the UCL to be higher than the maximum UCL is smaller than predetermined, correcting each UCL determined as higher than the maximum UCL to a sound pressure equal to or less than the maximum UCL.

The invention discloses a P300-based audio-visual dual-channel competition mechanism brain-computer interface method. The method comprises the following steps: setting a first normal form as an audio-visual interference normal form, and displaying visual stimulation as monosyllable letters in the center of a screen in different colors; setting a second normal form as an audio-visual irrelevant normal form, enabling the auditory stimulation to be still monosyllable letters which are the same as those of the first normal form and visual stimulation to be six geometric figures which are differentin shape and color, and enabling the patterns to have no correlation with the letters of the auditory stimulation; setting different stimulation time intervals, stimulation lengths, stimulation presentation sequences and attention modulation modes; and collecting electroencephalogram signals through 64-lead electroencephalogram electrode caps, comparing tested electroencephalogram signals under different tasks, and analyzing quantitative and positioning representation of the competitive relation between vision and auditory senses. To be specific, the auditory stimulation is the same monosyllable letters and is output in two channels of an in-ear earphone; and the sound stimulation is set to have the same semantics as the visual stimulation and have the same visual and auditory stimulationtime.