Title :
A New Adaptive Frequency and Amplitude Modulation Encoding in Multi Channel Cochlear Implant
Author :
Tabibi, Sonia ; Sadjedi, Hamed
Author_Institution :
Dept. of Biomed. Eng., Islamic Azad Univ., Tehran, Iran
fDate :
March 30 2011-April 1 2011
Abstract :
In recent years, methods for speech processing in cochlear implant systems have been proposed in which frequency modulation is extracted as well as amplitude modulation in different bands. In this paper besides considering one of the above strategies, methods for improving sample reduction and computational efficiency are also presented. In this case adaptive method according to processing parameters and an input signal has been suggested that due to the use of fewer samples to synthesize the signal is better than the other methods and is significantly efficient.
Keywords :
amplitude modulation; cochlear implants; speech processing; adaptive frequency; amplitude modulation encoding; case adaptive method; computational efficiency; multi channel cochlear implant; sample reduction; speech processing; Cochlear implants; Filter banks; Frequency modulation; Frequency synthesizers; Spectrogram; Speech; amplitude modulation; cochlear implant; frequency modulation; sample reduction; signal processing;
Conference_Titel :
Computer Modelling and Simulation (UKSim), 2011 UkSim 13th International Conference on
Conference_Location :
Cambridge
Print_ISBN :
978-1-61284-705-4
Electronic_ISBN :
978-0-7695-4376-5
DOI :
10.1109/UKSIM.2011.70