hearing aid technology

Hearing Aid Technologies


Hearing aid technology has improved drastically over the past couple of decades.

Early devices relied on vacuum tubes and bulky batteries, but today’s instruments take advantage of digital signal processing, microchips and computerization. Keeping track of the latest technological features can be challenging, but we’ll cover a few of the more popular options here.

Hearing Aid Technology

Does Analog Hearing Aid Technology Still Exist?

Analog technology still exists, but fewer and fewer manufacturers offer these devices, and many have phased them out entirely. Analog units employ a particular frequency based on your audiogram and all sounds are amplified in the same manner, whether speech or background noise. Some analog hearing aids can be programmed for different listening environments.

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How Does Digital Hearing Aid Technology Work?

Digital programmable hearing aids use digitized sound processing to convert sound waves into digital signals. A computer chip determines whether the signals are speech or noise and converts them into clear, amplified signals. Advantages in digital processing are significant: it offers improved programming ability, a more precise fit and a number of features designed to improve or enhance functionality, including:

  • Gain processing reduces background sounds and microphone noise to offer a clearer sound for the listener, with less clinical adjustment needed.
  • Digital feedback reduction (DFR) relies on cancellation systems to eliminate or reduce feedback.
  • Digital noise reduction (DNR) reduces background noises for improved speech recognition.
  • Directional microphones utilize dual microphones, focusing one on the sound source while the other decreases background noise, to enable the user to better determine directionality.
  • Wireless connectivity with Bluetooth® devices provides great flexibility.

While the choices may seem overwhelming, working closely with your audiologist at [company] can help you figure out which technology and features are perfect for your needs.


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