With the advancement of technology, hearing aids are receiving the flavour of modernization and digitization since the past few decades. Previously people could hardly dream of a listening device that can store customized programs. But today the scenario of hearing devices has completely changed with the introduction of new features, advanced functions and stylish designs.

The development of listening devices paralleled with that of computers. The first electronic hearing aids were extremely large and sat on the table. Gradually over time, digital hearing aids came to the forefront with a vast range of features. Digital hearing aids are an advancement over the Analog ones as the latter amplified every sound that they received, without differentiating between speech and noise. This often disturbs the smooth flow of the listening experience of the hearing impaired person. Digital hearing aids on the other hand, separate the analog sound signals into various sections, analyse each of them and finally convert them into digital signals. These digital signals are modified and converted back to sound signals that are understandable by the user. Therefore, digital hearing aids not only amplify sound, but deliver sound in a very natural way that can be soothing for the person wearing it.

The transformation of hearing aids began with the development of digital computers. While the previously used Vacuum Tubes took up large spaces, today’s microprocessors not only save space, but also have the capacity to store more memory. Thus, the digital hearing aids have reduced in size, and can be absolutely hidden in the ear canal. Also, they are much more efficient, fast, programmable, and the best part is that, these digital hearing aids have wireless connectivities. Most of them have the ability to store the customized programs of the user, which can be switched between using a remote control or by pushing a simple button.

The first digital hearing aids, however, were just modified versions of the previous Analog ones, and lacked most of the features of this day digital devices. As the requirements of the people changed, more and more advanced features were introduced into the digital hearing aids, which created a new era in the developmental history of listening devices. The history of digital hearing aids, however, dates back to the period of World War II, when there was a pressing need for developing a secure telephone line between Washington and London. It was when speech was first digitized by converting analog signals into binary ones, represented as 0s and 1s. This technology paved the way for an increased amount of flexibility in digital hearing aids - the milestones of listening devices.

 

Digital hearing aids are very technologically advanced as they convert the sound waves to digital signals, which make hearing experience much better. These devices can be customised and regulated by the user according to his/her needs. This technology makes an exact replication of each and every sound. The key benefits of digital hearing aids include, greater precision in fitting it into the ear, feedback and noise reduction, sleeker design, and a much longer lifespan. Hearing Plus, a recognized brand, offers very productive digital hearing aids.

The epoch-making features of digital hearing aids are many. Let us have a quick glance at them.

  • Amplitude compression - In this technology, the incoming audio signals are separated into distinct frequency band sections. The bands in the digital hearing aids are so adjusted so that the weak sounds receive more amplification and the intense sounds are less amplified.

  • Multi-Channel architecture - The more the channels in digital hearing aids, the more is the flexibility in controlling the quality of sound.

  • Programmability - These devices store the preferred programs and the user can switch between them.

  • Acoustic feedback reduction - The digital hearing aids have the ability to reduce feedback, such as whistling sounds, that often affects hearing.

  • Noise reduction - These modern aids can also detect whether a sound is a speech or a noise, and delivers it accordingly, by amplifying only the speech and reducing background noise.

  • Compatible with Bluetooth, Fm and other wireless technology, and even Internet connections - These days people have turned completely digital, so why should the hearing aids be left out?

  • Innovative new designs - Digital hearing aids these days come in very sleek and stylish designs that are extremely admirable.

  • Larger lifespan - These aids last much longer than the Analog ones, as they come in waterproof casings.


To conclude, hearing aids have undergone a massive change in the past few decades and today they are much more complex. While previously they were huge machines to be kept on the tabletop, today the digital hearing aids are not only wearable, but can lay completely hidden inside the ear canal of the hearing impaired person, which is so comfortable for them that they completely forget about their hearing impairment. Today, listening devices are so advanced that they can detect the real-world listening scenario and modify and filter the sounds accordingly. The development of digital hearing aids began slowly, but gained momentum with the technological advancements.