Digital Code

You’ve likely heard 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 modern technology so much better? And what exactly can present day hearing aids achieve that couldn’t be accomplished in the past?

The abbreviated answer is, like the majority of consumer electronics, hearing aids have benefited greatly from the digital revolution. Hearing aids have developed into miniaturized computers, with all of the programming adaptability you would expect to see from a modern computer.

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

Digital vs analog hearing aids

At the most basic level, all hearing aids do the job the same way. Each hearing aid is made up of a microphone, amplifier, speaker, and battery. The microphone detects sound in the environment, the amplifier strengthens the signal, and the speaker supplies the louder sound to your ear.

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

Analog hearing aids process sound in a fairly uncomplicated manner. In three basic steps, sound is picked up by the microphone, amplified, and presented 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. Put differently, 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, conversely, apply a fourth step to the processing of sound: transformation of sound waves to digital information. Sound by itself is an analog signal, but instead of merely making this analog signal louder, digital hearing aids first convert the sound into digital configuration (saved as 0s and 1s) that can then be manipulated. 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 specific application that manipulates and enhances the quality of sound.

Advantages of digital hearing aids

Most today’s hearing aids are digital, and for good reason. Seeing that analog hearing aids can only amplify incoming sound, and cannot alter it, analog hearing aids very often will amplify distracting background noise, making it frustrating to hear in noisy environments and nearly impossible to talk on the phone.

Digital hearing aids, in contrast, have the versatility to amplify select sound frequencies. When sound is converted into a digital signal, the computer chip can detect, mark, and store specific frequencies. As an example, the higher frequency speech sounds can be tagged 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 effortless to follow conversations even in noisy areas.

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 totally in the ear canal, making them mostly undetectable.
  • Digital hearing aids tend to have more appealing designs and colors.
  • Digital hearing aids can be programmed by a hearing specialist to process sound in various ways based on the location. By switching settings, users can achieve ideal hearing for many different situations, from a quiet room to a noisy restaurant to talking on the phone.
  • Digital hearing aids can be fine-tuned for every patient. Each person hears different sound frequencies at different decibel levels. Digital hearing aids permit the hearing specialist to modify amplification for each sound frequency based on the characteristics of each person’s distinctive hearing loss.

Try digital hearing aids out for yourself

Reading about digital hearing aids is one thing, trying them out is another. But bear in mind, to get the most out of any set of hearing aids, you will need both the technology and the programming expertise 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 types 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!