Limitations of Traditional Hearing Aids

Traditional hearing aids detect sounds through a microphone in the Processor. Using digital signal processing and signal amplification, hearing aids convert and push the amplified sound energy through a small speaker into the ear canal. These amplified sound waves vibrate the eardrum more strongly than the original sound wave would have; thus, the sounds are louder so that a person with hearing loss can perceive, or “hear” them. 

Many people who wear traditional hearing aids have enjoyed the quality of life benefits that can result from treating hearing loss. But, even the best and latest models of traditional acoustic hearing aids are constrained by the physical limitations of acoustic speaker technology. Acoustic speakers can only transmit a limited range of sound frequencies that do not allow the user to recover access to the full spectrum of hearing. This is due to power limitations as well as the inability to deliver gain at sufficient levels to achieve audibility prior to encountering gain-limiting acoustic feedback. However, studies have shown the benefit of a broader frequency range, which has been associated with a perception of more natural sound quality as well as improved ability to understand speech.

The Earlens Contact Hearing Solution overcomes the limitations of traditional acoustic hearing aids by eliminating the acoustic speaker and directly vibrating the eardrum. The behind-the-ear Processor collects and processes sound, then transfers sound to the Ear Tip. The Ear Tip converts the sound into pulses of energy, which signal the Lens to gently vibrate your eardrum, activating your natural hearing system for rich, natural sound.