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Five Step Guide to |
1
The hearing aid microphone turns sound into an electrical signal. |
2
A filter removes inaudible frequencies. |
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3
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) |
4
The chip is programmed to perform many operations (noise reduction, filtering feedback cancellation, etc.) depending on the algorithm used. |
5
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.
6 IMPORTANT QUESTIONS TO ASK ABOUT DIGITAL HEARING INSTRUMENTS
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1 How many channels does it have? How many do I need? |
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2 What type of Automatic Signal Processing compression does it use and what type would best suit my current lifestyle? |
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3 Does it offer directional microphones for hearing in noise? |
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4 Does it have wireless capability? Do my listening situations indicate I would benefit from hearing aids with wireless compatibility? |
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5 How many memories does it have? How many various listenings situations do I encounter? |
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6 Does it come with a remote control? Do I need a remote control? |
