Title :
Design of electronic speech processing machine for cochlear implants based on STFT
Author :
Lijun, Zhang ; Hongda, Yue ; Zhenglin, Lei
Author_Institution :
Coll. of Autom., Harbin Eng. Univ., Harbin
Abstract :
The principles of the cochlear implant and the speech processing strategies were presented. Then, the performance of spectral peak method and short-time Fourier transform method in DSPs were proposed to be used for cochlear implant. The experiment proved: The two strategies of the electronic cochlear system both could get good speech recognition, but the performance of STFT method has a great flexibility to pick up channelspsila parameters to stimulate the auditive nerves of a totally or profoundly deaf person and it had a faster processing speed. The traditional processor was made of ASIC circuit, its design and improvement was very complicated. The hardware design in DSPs could be simpler and more flexible.
Keywords :
Fourier transforms; ear; prosthetics; speech recognition equipment; ASIC circuit; DSP; STFT; cochlear implants; deaf person; electronic speech processing machine; short-time Fourier transform; spectral peak method; speech recognition; Automation; Cochlear implants; Digital signal processing; Educational institutions; Finite impulse response filter; Fourier transforms; Signal processing; Speech analysis; Speech processing; Speech recognition; Cochlear implant; Digital Signal Processor; Spectral Pesk method; short-time fourier transform(STFT);
Conference_Titel :
Control Conference, 2008. CCC 2008. 27th Chinese
Conference_Location :
Kunming
Print_ISBN :
978-7-900719-70-6
Electronic_ISBN :
978-7-900719-70-6
DOI :
10.1109/CHICC.2008.4605870
