Cochlear Implants : Fundamentals and Applications Soun is nought but air y broke —Geoffrey Chaucer end of the 14th century Traditionally acoustics has formed one of the fundamental branches of physics. In the twentieth century the eld has broadened considerably and become creasingly interdisciplinary. At the present time specialists in modern acoustics can be encountered not only in physics departments but also in electrical and mechanical engineering departments as well as in mathematics oceanography and even psychology departments. They work in areas spanning from musical instruments to architecture to problems related to speech perception. Today six hundred years after Chaucer made his brilliant remark we recognize that sound and acoustics is a discipline extremely broad in scope literally covering waves and vibrations in all media at all frequencies and at all intensities. This series of scientic literature entitled Modern Acoustics and Signal P cessing (MASP) covers all areas of today’s acoustics as an interdisciplinaryeld. It offers scientic monographs graduate level textbooks and reference materials in such areas as architectural acoustics structural sound and vibration musical acoustics noise bioacoustics physiological and psychological acoustics speech ocean acoustics underwater sound and acoustical signal processing. A History Surgical Anatomy Surgical Pathology Neurobiology Electrophysiology Psychophysics Speech (Sound) Processing Engineering Preoperative Selection Surgery Rehabilitation and Habilitation Results Socioeconomics and Ethics Research Directions.