Digital Hearing AIDS

Fully digital hearing aids process sound mathematically. In place of electronic components, digital hearing aids contain hundreds of tiny electrical parts which are micro-manufactured into a signal silicon chip. The computer programmed chip applies continuous digital processing to incoming sound. Here’s how these digital hearing aids work:

Five Step Guide to
How digital Hearing Aids Work


The hearing aid microphone turns sound into an electrical signal.


A filter removes inaudible frequencies.


The electrical signal goes to the analog-to-digital converter, which changes it to a digital signal to be manipulated by the hearing aid’s computer (DSP chip)


The chip is programmed to perform many operations (noise reduction, filtering feedback cancellation, etc.) depending on the algorithm used.


The digital signal is converted back into audible sound for the patient to hear. These functions are performed instantly and continually.

User Benefits For Digital Hearing Aids

  • Availability of Automatic Signal Processing circuits which are not available with non-programmable instruments
  • Multiple circuit options within a single instrument which achieve different sound qualities.
  • Automatically achieves more volume for the soft, high frequency sounds and less volume for the more intense, low frequency sounds.
  • Capable of retaining the patients complete audiometric file and preferred listening programme for various environments.
  • Ability to readjust your prescription should your hearing loss change.



1 How many channels does it have? How many do I need?

2 What type of Automatic Signal Processing compression does it use and what type would best suit my current lifestyle?

3 Does it offer directional microphones for hearing in noise?

4 Does it have wireless capability? Do my listening situations indicate I would benefit from hearing aids with wireless compatibility?

5 How many memories does it have? How many various listenings situations do I encounter?

6 Does it come with a remote control? Do I need a remote control?