Nowadays, hearing aids consume more power than the previous ones, why?

With the wide application of digital signal processing technology in the hearing aid industry, hearing aids have moved from the analog era into the digital era. All-digital hearing aids have better hearing compensation than analog hearing aids, and are loved by the majority of hearing impaired people. However, the more powerful hearing aids tend to have high current and voltage requirements, and must be used at a specific current and voltage value. This is because hearing aids amplify sound while also processing sound, detecting and automatically switching to ambient noise, and so on, all of which increases the battery consumption of hearing aids.

From the point of view of the operating current, analog hearing aids standard line of static operating current in the 0.40 to 0.60 mA between the high-power line static operating current in the 0.95 to 1.20 mA between the compression of the line of the road static operating current in the 0.70 to 0.98 mA between. And the digital machine static operating current of any line is not less than 1.00 mA.　　

In addition, from the working process, analog hearing aids in the work with the consumption of battery power, the output sound gradually reduced until this battery is depleted, and all-digital hearing aids have a low-battery detection system, when the power is lower than a specific voltage, it will issue a tone and stop working