Hearing aid tips

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Frequency band – this is a concept at the signal level. The sound signal processed by the hearing aid is composed of many frequencies. We can divide the signal into several areas according to the frequency. For example, we can divide the sound signal from 250Hz to 8000Hz into five areas, i.e. “250hz-500hz”, “500hz-1000hz”, 1000hz-2000hz “,” 2000hz-4000hz “,” 4000hz-8000hz “. Each area is called” band “.

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Channel – this is a hardware level concept. The core of all digital hearing aid is DSP (digital signal processor). For multi-channel all digital hearing aid, there are many independent electronic circuit units in its DSP, with the same structure and function. Each unit calculates and processes the sound signals of different frequency bands. Because each processing unit is relatively independent and processing at the same time, it is called “channel”, just like our traffic channel, each traffic channel can pass through vehicles at the same time. At present, Widex’s sense Diva series hearing aids use one channel to process one frequency band sound signal.

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Summary: there is only one compression for a single (full) channel, and only one compression for all frequencies. Dual channel or multi-channel has two or more independent compression, which can be divided into different frequency bands to meet the compensation needs of various hearing curves, and play a more flexible and effective noise reduction function.

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Jinghao hearing aid reminder: hearing aid wearing requires professional “matching”, so it is very important to choose a professional hearing aid matching center and a hearing aid tester! If you have any hearing problems, you can call Jinghao for consultation, or come to the matching center for experience. Hearing aid free consultation Tel.: + 86-18566295705

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