Audiometry system with intelligent noise reduction function

Abstract

The invention discloses an audiometry system with an intelligent noise reduction function, which comprises an environment sound pressure state monitoring device and an active noise reduction device, and is characterized in that the environment sound pressure state monitoring device comprises an audiometry chamber, a sound insulation earmuff, a display and a host, and the active noise reduction device comprises a microphone, an anti-phase loudspeaker and an SOC noise reduction processor; the host and the display are arranged outside the audiometry chamber; the sound insulation earmuff is arranged in the audiometry chamber; the SOC noise reduction processor is installed on the inner wall of the audiometry chamber and electrically connected with the outdoor host. A microphone and an anti-phase loudspeaker of the active noise reduction device are electrically connected with the SOC noise reduction processor; the microphone is arranged on the outer side of the sound insulation earmuff outer wall and points to the outer side; the anti-phase loudspeaker is arranged on the inner side of the outer wall of the sound insulation earmuff and points to the sound insulation earmuff; the audiometry earphones are arranged on the inner sides of the inner walls of the sound insulation The audiometry chamber is a sound insulation space with a fixed volume; and spring damping wheels are arranged at the bottom of the audiometry chamber. The audiometry system can automatically realize noise reduction according to the surrounding environment and reduce interference of environmental noise on audiometry signals.

Description

technical field [0001] The invention relates to the field of audiometry equipment, in particular to an audiometry system with an intelligent noise reduction function. Background technique [0002] With the progress of the aging society and the promotion of the popularization and application of electroacoustics, there are more and more voices and more and more people with hearing loss. [0003] In the early stage of hearing loss, the human ear is not easy to detect, and it can only be detected through audiology testing in medical institutions. Many people feel inconvenient and unwilling to check their hearing in this way. Only when they seriously affect their lives do they choose to go to the hospital. It's too late. Then, hearing monitoring audiometry in a common environment is one direction. Mobile audiometry systems can be installed in residential or school classrooms, but they will be affected by large changes in environmental noise pressure. At this time, due to the lar...

AI Technical Summary

Problems solved by technology

[0003] In the early stage of hearing loss, the human ear is not easy to detect. It can only be found through the audiology test of medical institutions. Many people find this method inconvenient and are unwilling to have their hearing checked. Only when it seriously affects their lives do they choose to go to the hospital. too late

Then, hearing monitoring audiometry in ordinary environments is one direction. Mobile audiometry systems can be installed in residential areas or school classrooms, but they will be affected by large changes in environmental noise pressure. At this time, due to large changes in environmental sound pressure, ANC is commonly used The system can only perform intelligent noise reduction with a fixed amount of noise reduction. Sometimes the reverse phase sound is too loud to cause new noise, which will interfere with the test.

[0004] At present, there are mainly two types of audiometry methods: online audiometry and offline audiometry. Online audiometry means that the listener conducts audiometry online through mobile phones or computers. However, this audiometry method is affected by the environment. , Headphone quality impact, mobile phone system inconsistency and other factors are constrained, and the audiometry environment changes greatly, the audiometry reliability is low, and the error is large;

[0005] Off-line audiometry is performed by the listener going to a medical institution. The main method of audiometry is that the listener stay in a soundproof room. However, although the existing large soundproof room of the medical institution can reduce noise and the noise reduction effect is good , but it is difficult to find a suitable place for installation due to its large size, and the noise reduction effect of the movable small sound insulation room is poor, which affects the reliability of audiometry results

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