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211 results about "Hearing test" patented technology

A hearing test provides an evaluation of the sensitivity of a person's sense of hearing and is most often performed by an audiologist using an audiometer. An audiometer is used to determine a person's hearing sensitivity at different frequencies. There are other hearing tests as well, e.g., Weber test and Rinne test.

Portable hearing testing and hearing-aid testing and matching integrated system

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.
Owner:JIANGSU BETTERLIFE MEDICAL

Digital hearing aid loudness compensation method based on frequency compression and movement

ActiveCN102638755AImprove hearingImprove speech recognitionSpeech analysisDeaf-aid setsHearing testHearing level
The invention discloses a digital hearing aid loudness compensation method based on frequency compression and movement, which belongs to the technical field of voice signal processing. The digital hearing aid loudness compensation method comprises the following steps of: filtering, and extracting the low-frequency part and the high-frequency part of a signal; compressing and moving the voice high-frequency part according to proportion; simulating a voice signal heard by a patient; designing a four-channel FIR-QMFB (Quadrature Mirror Filter Banks); dividing a frequency range; and carrying out loudness compensation and gain control; and combining voice. The digital hearing aid loudness compensation method is characterized in that the original voice signal is divided into low frequency and high frequency, then, the high-frequency part is compressed and moved to a medium and low frequency range according to proportion, and the overlaid voice signal is subjected to frequency band division and loudness compensation according to a hearing test curve of a hearing impairment patient. Therefore, negative effects brought by carrying out high-gain loudness compensation on the high frequency range in the prior art can be effectively avoided, and the hearing level and the language recognition rate of the patient can be effectively improved.
Owner:HAIMEN MAOFA ART DESIGN CO LTD
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