Simulating hearing aids and digital hearing aids

With the development of electronic technology, hearing aids have entered the digital age from analog machines. From simple volume adjustments, high and low frequencies, output, inflection points and other fine-tuning to fine-tuning through computer bands, channels, automatic feedback management, automatic noise management, etc., it also reflects hearing aids from a simple amplifier to nanotechnology products. The power of a digital hearing aid requires a particularly high voltage and current during operation and must be above a certain voltage and current value. Since digital hearing aids need to process sound while amplifying sound, it is also necessary to detect and automatically convert ambient noise, as well as control feedback, current events of digital storage, and various prompts, which increase battery consumption. At the same time, we tested and compared the static operating current of the simulator and digital machine (the operating current without sound input).


First, the test results of the simulator: the static operating current of the standard line is0.40And0.60 mABetween, the static working current of the high power line is0.95And1.20 mABetween, the static working current of the compression line is between0.70And0.98 mAbetween. . The static working current of the digital machine is not less than1.00. mAh.

In addition, we compare the working process of the simulator and digital machine (set the same output), and find that the output sound gradually decreases with the battery power consumption until the battery is exhausted, depending on the type of hearing aid used. May be more than a week;Digital hearing aids have a low power detection system. When the battery is below a certain voltage and current value, it will make a sound and then stop working. The number of days used is approximately one week, but not less than three days. After using the electroscope, the battery used in the simulator has no power, and the battery used in the digital machine has a residual voltage. At the same time, we also tested batteries of various brands. During the development of the battery, the increase in power is not very large, but the power requirements of the hearing aid have changed a lot.

We also surveyed many users, especially after switching to a digital hearing aid for a user wearing the simulator, the time spent on the battery was unacceptable. However, from the perspective of the effect of use, the digital hearing aid is far better than the simulator, the noise is not harsh, the sound is fuller and more realistic.;From the perspective of hearing protection of the ear, the user needs to use the simulator to make the sound as loud as possible. Increasing the loudness and quantity of the ear to the sound The hearing device’s requirements for sound have not changed. Fundamentally, advantages outweigh disadvantages. Therefore, we must correctly understand why digital hearing aids are “powered out”. It is recommended that the user can use the imported battery when selecting the battery, because the imported battery voltage is stable, not suitable for leakage, and the hearing aid will not be damaged. From another perspective, if the hearing aid is damaged by the battery, the maintenance cost is far more than the purchase of the battery. of. We also hope that battery technology will have more development and provide batteries for our hearing impaired friends for a long time.

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