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Hearing aids technology

Hearing aids fitting formula

Patients with different hearing loss show a wide range of hearing impairments. Increasing the patient's hearing threshold, reducing the dynamic audible range of hearing, abnormal sensitivity to loudness, and reduced speech discrimination are all problems caused by hearing impairment. How to choose a suitable hearing aid and how to adjust...

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Hearing aids technology

 Hearing aid fitting type and Performance and function selection

   Hearing aid type selection The types of hearing aids mentioned here mainly refer to different classifications according to the appearance of hearing aids, including complete in-ear hearing aids, in-ear hearing aids, in-ear hearing aids, behind-the-ear hearing aids, glasses-type hearing aids, and box-type hearing aids. There are many factors to consider when...

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Hearing aids technology

hearing aid compression technology

hearing aid compression technology Compression Limit 1. Auditory dynamic range The auditory dynamic range refers to the range of sound intensity from the hearing threshold to the discomfort threshold of the human ear. As shown in Figure 5-5, the hearing threshold of normal people is about lodB, the discomfort threshold is about 100dB,...

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Hearing aids technology

Hearing aid acoustic processing technology  

Hearing aid acoustic processing technology    Hearing aid circuit can be divided into linear hearing aid and non-linear hearing aid based on the input and output characteristics of the amplifier; it can be divided into non-programmable hearing aid and programmable hearing aid according to the adjustment method; it can be...

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Hearing aids technology

Complete ear canal hearing aid (CIC hearing aids)

Complete ear canal hearing aid (CIC hearing aids) Complete ear canal hearing aid refers to the shape of the patient according to the shape of the patient;: The external ear canal population, a type of hearing aid that stops near the second curve. 3.6.1 Acoustic characteristics of complete hearing aids Complete-in-the-cana1, c:...

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