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71 results about "Hearing disorder" patented technology

Conditions that impair the transmission or perception of auditory impulses and information from the level of the ear to the temporal cortices, including the sensorineural pathways.

Speech enhancing and frequency response compensation fusion method in digital hearing-aid

The invention provides a speech enhancing and frequency response compensation fusion method in a digital hearing-aid. The speech enhancing and frequency response compensation fusion method includes the steps of (1) obtaining estimated noise and initial enhanced speech with an MCRA method, respectively carrying out filtering processing on the estimated noise and the initial enhanced speech through a gammatone filter, dividing a signal into M frequency bands through the perception mechanism of the cochleas to the signal, and meanwhile obtaining a time frequency expression mode of the signal, (2) computing masking threshold values of the frequency bands through factors such as the audio masking characteristic of the human ears and the frequency band signal to noise ratios, (3) dynamically computing masking values of noise-contained speech in a time frequency domain through a hearing curve of a hearing disorder patient, and processing speech enhancing and frequency response compensation at the same time, and (4) synthesizing output speech of the heating-aid through the masking values. According to the speech enhancing and frequency response compensation fusion method, the working mechanism of the human ears is sufficiently used, the speech characteristics are kept, music noise introduced through a spectral subtraction method is eliminated, the speech intelligibility of output signals of the hearing-aid is greatly improved, and the low complexity and the low power consumption are achieved.
Owner:湖南汨罗循环经济产业园区科技创新服务中心

Multifunctional synchronous interaction system and method of music instruments

ActiveCN103729062ARealize synchronous two-way communicationAchieve interactive effectInput/output for user-computer interactionElectrophonic musical instrumentsInteraction systemsTerminal equipment
The invention discloses a multifunctional synchronous interaction system of music instruments. The multifunctional synchronous interaction system realizes the functions of learning interaction between performers and instruments, rehearsing interaction of multiple performers with the instruments and teaching interaction between special performers with hearing disorder and the instruments. The multifunctional synchronous interaction system comprises an instrument and sensor module, mobile terminal equipment and a projection indicating and executing module. The multifunctional synchronous interaction system controlled by a client software has the advantages that in a way that instrument performing signals are input by multiple sensors, through projection indication of the system, instrument performance and interaction under multiple scene modes are realized, including the scene of performers with hearing disorder, the scene of space division among the performers and the scene of voice rehearsal of multiple performers; the performers can guide the performances of different performers, or guide concerto of multiple performers by teaching on one instrument; or the multifunctional synchronous interaction system realizes learning by teaching or remote interaction, or the performers with hearing disorder can use and learn the instruments to perform.
Owner:ZHEJIANG UNIV

Hearing aid voice quality W-PESQ objective evaluation method based on gain compensation

InactiveCN107221339AHigh practical valueGood fit between subjective and objectiveSpeech analysisPESQEngineering
The invention belongs to the hearing aid voice quality evaluation technology field and especially relates to a hearing aid voice quality W-PESQ objective evaluation method based on gain compensation. The method comprises steps that firstly, an end point detection method is utilized to carry out alignment processing of a recorded hearing aid output voice signal and an original pure voice signal; signal interception processing on the recorded hearing aid output voice signal and the original pure voice signal after alignment processing is carried out; gain compensation of the pure voice signal without flowing through a hearing aid is carried out; a gain compensation filter is designed, gain adjustment on the original pure voice signal is carried out according to a frequency domain gain curve of the present hearing aid so as to realize fitting of a frequency domain response curve of the gain compensation filter and a gain curve of the hearing aid; lastly, objective evaluation on hearing aid voice quality is carried out through employing a W-PESQ algorithm. The method is advantaged in that a hearing disorder population is considered, the gain compensation filter is designed, through subjective verification, the method has excellent subjective and objective agreement, and great practical values are realized.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1

Device for sound distinguishing of small animal and synchronous electrophysiological-signal recording

PendingCN107802264AAccurate recordUnderstand the status of auditory functionAudiometeringAnimal housingDiseaseSOUND STIMULATION
Provided is a device for sound distinguishing of a small animal and synchronous electrophysiological-signal recording. The device comprises an activity chamber used for placement and activities of thesmall animal, a sound stimulation device, a water supply device, an electrophysiology recording device and a micro-control computer; the sound stimulation device is used for giving sound with different parameters to the trained small animal and training the small animal to distinguish sound stimulation with different intensity or different time phases; the electrophysiology recording device is used for recording electrophysiological signals of the small animal and sending the signals to the micro-control computer; the water supply device is a given award during the task of studying sound stimulation distinguishing of the small animal; the micro-control computer receives event signals, conducts data collection and analyzing treatment on the event signals and then transmits a result to a corresponding display device for display. By means of the device, the electrophysiological signals and movement track signals of the small animal in the process of sound distinguishing can be accuratelyrecorded, and then electrophysiological signals during different hearing disorders can be studied and recorded to learn about the states of auditory functions so that whether or not a disease relative to hearing happens can be judged.
Owner:XUZHOU MEDICAL UNIV
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