A new speech processing strategy based on wavelet packet transform in cochlear implant

Cochlear implants improve partial hearing to profoundly deaf people. Many investigators from various disciplines made combined efforts for progression on these implants. The speech processing strategy in modern cochlear implant´s extracts and encodes amplitude information in a number of frequency bands. In thesis study, we proposed an approach to improve the performance of speech enhancement techniques based on wavelet packet algorithm. This algorithm has better results on speech intelligibility than other existing algorithm and this result has been proved by the intelligibility experiments.