The technology behind the digital hearing aid improved day by day and more efforts were put in to make this device highly useful and responsive. The technologically improved digital hearing aid was well appreciated by the audiologists and users due to numerous beneficiaries. Analog hearing aid is responsible only for increasing the sound level, whereas digital hearing aid enhances the sound clarity as well. It further helps one to distinguish between different types of sound. With digital hearing aid one can easily identify the difference between speech and background noise resulting in clarity in conversation. Digital hearing aid device catches the incoming signals from the microphone and converts this digital signal into digital format using a computer chip and process it using digital technology before converting it back to analog sound that is delivered back to the ear. Digital hearing aids are designed completely keeping in mind the problems and requirements of hearing impaired people.
This highly durable, versatile and high tech operated digital hearing aid is known for multifarious functions like digital speech enhancement, digital feedback reduction, digital noise reduction, digital static protection and directional microphone. Due to the above stated functions and feature digital hearing aid is considered as a much adaptive and dynamic device enhancing the hearing efficiency of the hearing impaired people. Phonak hearing aids are considers leaders in the area of hearing aid.