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Hearing aid technology classification-Earsmate

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The method of classification of hearing aids by technology has not been a unified standard, and with the development of hearing aid technology, the classification of hearing aids is also constantly scientific and optimized.


It is precisely because of this change process that hearing aid manufacturers will be slightly different when categorizing their products, but in general they can meet the requirements of the development of hearing aid science and technology. Recently, there have been found that there are manufacturers who deliberately blur the technical classification concept of products, which makes them beneficial to the sales of their own products. Even computer-programmable hearing aids are digital hearing aids. Non-programmable hearing aids are the absurd arguments for simulating hearing aids.


In order to be responsible for the hearing impaired, and to communicate with hearing aid professionals, Earsmate hearing aid manufacturer on the two concepts of analog and digital, programmable and manual adjustment, using the classification method currently accepted in the industry to explain the classification of hearing aid technology.

The commonly used hearing aid technology classifications are as follows: manual analog hearing aids, programmable analog hearing aids, manual digital hearing aids, and programmable digital hearing aids.

SpecificProgrammable hearing aids:

The fine-tuning used to regulate the output is not a common mechatronic component, but a hearing aid that is adjusted by a computer, and the data stored in the register corresponds to a certain position of the fine adjustment. Conversely, if the debug frequency response is achieved by mechanically adjusting the potentiometer, it is manually adjusted. The key to distinguishing whether a hearing aid is programmable or manual is to see whether the controller is a digital register or a mechanical trim, regardless of whether the hearing aid processes the signal analog or digital.

Digital hearing aids:

It refers to a hearing aid that uses digital technology to process the entire process from the microphone to the receiver, while a hearing aid that uses analog components for signal processing is an analog hearing aid. The key to distinguishing between analog and digital is to see whether the processing of the signal is analog or digital, regardless of whether the controller of the hearing aid is a digital register or a mechanical trim.

Reasons for recommending a programmable hearing aid:

1. More parameters are adjusted, more flexibility, and can adapt to the hearing changes of the hearing impaired for a long time, especially for children;

2. The adjustment parameters of the in-ear hearing aid are no longer limited by the volume, and can be connected to the computer through the programming line, and there may be up to several dozen fine adjustment parameters;

3. Multiple sets of procedures can be set up according to the living environment of the hearing impaired to adapt to the requirements of different listening environments;

4. With the help of the computer interface, you can understand the frequency response curve of the hearing aid and the role of each setting, so as to provide advice to the wearer.

Reasons to recommend an all-digital hearing aid:

1. All-digital hearing aid can distinguish and suppress ambient noise, so the sound quality is clear, loud and soft, not noisy;

2. The DSP (Digital Signal Processing) process of the digital machine can extract the characteristics of the voice and combine the sound perception characteristics of the human ear, and enhance the voice signal in the signal. The actual effect of the user is the language intelligibility of the digital machine. Far higher than the simulator;

4. All-digital hearing aids allow multi-microphone and multi-channel settings to improve speech intelligibility in noisy environments;

5. Through the digital filtering technology, suppress the acoustic feedback without affecting the normal amplification;

6. Various prompts can be added to facilitate the user to grasp the use of hearing aids and batteries at all times;

7. It has stronger wireless system and mobile phone compatibility features and stronger anti-electromagnetic interference characteristics than analog products.

Use of hearing aid technology on the market

Analog Manual: The original analog linear amplification technique relied on manual adjustment and was eliminated except for some high-power boxed hearing aids.


Analog programming: The mechanical adjustment of traditional hearing aids is replaced by a programmable processor. For the subtle hearing aids that replace the traditional fine-tuning, the digital programmable function has a special advantage. A programmer can be easily connected to the hearing aid with a fine-tuned hole and the device can guarantee 100% programming. It has been replaced by all digital lines.


Digital Manual: With analog/digital conversion technology, it can further process analog information. For example: a sine wave tone must be digitized into digital information. The analog/digital converter completes this process. And can be adjusted by traditional mechanical manual programming methods, not easily limited by objective hardware conditions.


Full digital programming: With analog/digital conversion technology, digital technology is used to perform digital signal analysis on digital signals, and it is a convenient and fast computer programming method. It is currently the mainstream of programming hearing aid market.

At last

From the development trend of hearing aid technology, all analog hearing aids will soon be replaced by digital hearing aids, whether programmable or not. Digital hearing aids will occupy all hearing aid markets from high end to low end. Due to the versatility of digital technology, the trains that have developed rapidly in mainstream digital technology will be developed faster after the digitalization of hearing aids, and it is even possible to seamlessly connect with other devices.

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