Digital Hearing Aid Produces a Higher Quality of Sound Clarity
Hearing devices first emerged as horns that would amplify sound. This was a complete mechanical and traditional way of amplifying sound. The shape of a horn could produce sound at amplified frequencies enabling someone with hearing problems to hear. However, technology improved this type of hearing devices. Electronic devices aiding hearing came to being. They have sound receivers that collect sound. This sound is converted to electronic signals that are converted into sound signals and transmitted to an amplifier. This amplifier amplifies the frequencies of the sound signals. They are transmitted by wires to a speaker placed in the ear canal. The patient thus hears.
However, Digital Hearing Aid devices have been replacing older electronic devices. This is because the manner in which they process sound is far much better than analogue electronic devices. Being digital, they posses amplification means that produce high quality sound. There are minimal signal alteration and signal losses compared to analogue ones. Thus, the resultant sound produced is of high quality. The quality sound clarity ensures that frequencies are perfectly translated into sound. In a normal human ear, hair follicles maintain clarity of sound.
Hair follicles usually filter frequencies perfectly such that sound produced after vibration is of high quality. Hair follicles differentiate different frequencies to produce clear sound. In digital devices, sound clarity is maintained by use of silicon oils that try to differentiate sound frequencies. For a person with hearing impairment, it is necessary for sound to be clear for such a person to hear and differentiate sounds. In older analogue hearing devices, sound clarity may be poor as sound frequencies are not well processed. During amplification, there is loss of signals. Not all frequencies are detected thus poor clarity.
In digital devices, a highly technologically advanced sound processor exists. Amplification and processing of sound is done digitally. Transmission of the processed sound signals also takes place digitally. This ensures that most of sound frequencies are detected and not lost in processing. These digital devices are usually chip-sized for implantation inside human ear. Digital signal processing has improved hearing devices especially with respect to customization. This ensures that sound is customized as per a patient’s needs and surroundings.
Digital Hearing Aid ensures that a patient’s hearing problem is solved. Different patients have different hearing problems. These devices are very suitable for individual needs due to their dependence on advanced technology. Higher quality of sound clarity is maintained by computerized programming and alteration of the sounds mathematically. This is usually done to filter frequencies and improve clarity. The patient will thus hear very clear sounds despite being impaired to hearing. The implants provide more quality sound as they exist in the ears.
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