Digital Code

You’ve more than likely been told that today’s hearing aids are “not your grandfather’s hearing aids,” or that hearing aid technology is light-years ahead of where it used to be, even as recently as 5 to 10 years ago. But what makes today’s technologies so much better? And what exactly can modern-day hearing aids accomplish that couldn’t be achieved in the past?

The abbreviated answer is, as with nearly all electronics, hearing aids have benefited significantly from the digital revolution. Hearing aids have emerged as miniaturized computers, with all of the programming adaptability you would anticipate from a modern computer.

But before hearing aids became digital, they were analog. Let’s see if we can determine why the move from analog to digital was such an upgrade.

Digital vs analog hearing aids

At the simplest level, all hearing aids do the job the same way. Each hearing aid comprises a microphone, amplifier, speaker, and battery. The microphone picks up sound in the environment, the amplifier strengthens the signal, and the speaker supplies the louder sound to your ear.

Fundamentally, it’s not very sophisticated. Where is does get complex, however, is in the specifics of how the hearing aids process sound, which digital hearing aids accomplish far differently than their analog counterparts.

Analog hearing aids process sound in a very straightforward manner. In three basic steps, sound is picked up by the microphone, amplified, and delivered to the ear through the speaker. That is… ALL sound is made to be louder, including background noise and the sound frequencies you can already hear properly. In other words, analog hearing aids amplify even the sounds you don’t want to hear — think of the scratching sound you hear from an analog recording on a vinyl record.

Digital hearing aids, in contrast, apply a fourth step to the processing of sound: conversion of sound waves to digital information. Sound itself is an analog signal, but rather than merely making this analog signal louder, digital hearing aids first transform the sound into digital format (stored as 0s and 1s) that can then be altered. Digital hearing aids, therefore, can CHANGE the sound before amplification by modifying the information stored as a series of 0s and 1s.

If this sounds like we’re talking about a computer, we are. Digital hearing aids are in essence miniature computers that run one customized application that manipulates and improves the quality of sound.

Advantages of digital hearing aids

The majority of modern hearing aids are digital, and for good reason. Seeing that analog hearing aids can only amplify incoming sound, and cannot modify it, analog hearing aids very often amplify distracting background noise, making it frustrating to hear in noisy environments and nearly impossible to talk on the phone.

Digital hearing aids, however, have the versatility to amplify specific sound frequencies. When sound is converted into a digital signal, the computer chip can recognize, distinguish, and store specific frequencies. For instance, the higher frequency speech sounds can be marked and stored separately from the lower frequency background noise. A hearing specialist can then program the computer chip to amplify only the high frequency speech sounds while suppressing the background noise — making it easy to follow conversations even in noisy conditions.

Here are some of the other advantages of digital hearing aids:

  • Miniaturized computer technology means smaller sized, more discreet hearing aids, with some models that fit completely in the ear canal, making them nearly invisible.
  • Digital hearing aids tend to have more attractive designs and colors.
  • Digital hearing aids can be programmed by a hearing specialist to process sound in various ways based on the location. By changing settings, users can attain ideal hearing for different scenarios, from a silent room to a noisy restaurant to speaking on the phone.
  • Digital hearing aids can be fine-tuned for each patient. Each person hears different sound frequencies at different decibel levels. Digital hearing aids allow the hearing specialist to modify amplification for each sound frequency based on the properties of each person’s unique hearing loss.

Try digital hearing aids out for yourself

Reading about digital hearing aids is one thing, trying them out is another. But remember, to get the most out of any pair of hearing aids, you need both the technology and the programming proficiency from an experienced, licensed hearing specialist.

And that’s where we come in. We’ve programmed and fine-tuned countless hearing aids for people with all forms of hearing loss, and are more than happy to do the same for you. Give us a call and experience the digital advantage for yourself!