Portable programmable multichannel psychoacoustics audiometer

Abstract

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.

Description

technical field [0001] The invention belongs to the field of acoustics, in particular to a portable programmable multi-channel psychoacoustic audiometer. Background technique [0002] 10% of the normal population, 20% of the population over the age of 65 and 40% of the population over the age of 75 have a certain degree of hearing loss. In order to ensure the quality of life, they all need to wear hearing aids. In order to choose a suitable hearing aid device, it is necessary to use an audiometer to accurately assess the degree of hearing impairment of the patient. The measurement functions of traditional audiometers are generally fixed and cannot be customized according to the actual situation of the patient, so the versatility is poor; in addition, traditional audiometers are mainly composed of analog devices, so they are bulky and inconvenient to carry; Or, the traditional audiometer generally only has two channels, which cannot measure the patient's three-dimensional he...

AI Technical Summary

Problems solved by technology

The measurement functions of traditional audiometers are generally fixed and cannot be customized according to the actual situation of the patient, so the versatility is poor; in addition, traditional audiometers are mainly composed of analog devices, so they are bulky and inconvenient to carry; Or, the traditional audiometer generally only has two channels, so it is impossible to measure the patient's three-dimensional hearing ability

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