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subsection: Motivation

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\section{Introduction} \section{Introduction}
\subsection{Motivation} \subsection{Motivation}
According to the World Health Organisation (WHO), around 1.6 billion people over 14 years on earth suffer from any kind of hearing loss. From this 1.6 billion people, around 430 million suffer from disabling hearing loss (up to deafness), requiring rehabilitation. According to the World Health Organisation (WHO), around 1.6 billion people over 14 years worldwide suffer from any kind of hearing loss. Included in this 1.6 billion people, around 430 million suffer from disabling hearing loss (up to deafness), requiring rehabilitation. In the case of disabling hearing loss, the possiblity of using a Cochlear Implant (CI) has revolutionized auditory rehabilitation by restoring partial hearing. Despite a steady progress in implant technology over the past decades, the system still faces its limitations. Complex auditory environments, like static noises overlain by a person speaking, can still propose a considerable challenge for CI-users comapred to people with a healty hearing. \\ \\
\subsection{Overview of hearing aids and their role in auditory assistance} The use of Adaptive Noise Reduction (ANR) in combination with implant technology, like it is already used in conusmer-hardware like headphones provide users with a better sound perception and greater listening comfort. The challenge in implementing ANR in
\subsection{Overview of auditory implants and their role in auditory assistance}
\subsection{Introduction to Cochlear Implant (CI) Systems and Audio Processors} \subsection{Introduction to Cochlear Implant (CI) Systems and Audio Processors}
A Cochlear Implant (CI) System is a specialized form of hearing aid, used to restore partly or complete deafness. In contrary to standard hearing aids, CI's do not just amplify the audio signal received by the ear, but stimulate the auditory nerve itself directly through electric pulses.\\ \\ A Cochlear Implant (CI) System is a specialized form of hearing aid, used to restore partly or complete deafness. In contrary to standard hearing aids, CI's do not just amplify the audio signal received by the ear, but stimulate the auditory nerve itself directly through electric pulses.\\ \\
Usually, a CI System consists out of an external processor (''audio processor'') receiving the ambient audio signal, processing it, and then transmitting it inductively via a transmission coil through the skin to the cochlear implant itself, implanted on the patient's skull (see figure \ref{fig:fig_snychrony}). The CI stimulates the auditory nerves inside the cochlear through charge pulses, thus enabling the patient to hear the received audio signal as sound.\\ Usually, a CI System consists out of an external processor (''audio processor'') receiving the ambient audio signal, processing it, and then transmitting it inductively via a transmission coil through the skin to the cochlear implant itself, implanted on the patient's skull (see figure \ref{fig:fig_snychrony}). The CI stimulates the auditory nerves inside the cochlear through charge pulses, thus enabling the patient to hear the received audio signal as sound.\\