DocumentCode :
2570960
Title :
A 360-Channel Speech Preprocessor that Emulates the Cochlear Amplifier
Author :
Wen, Bo ; Boahen, Kwabena
Author_Institution :
Pennsylvania Univ., Philadelphia, PA
fYear :
2006
fDate :
6-9 Feb. 2006
Firstpage :
2268
Lastpage :
2277
Abstract :
A cochlea-based preprocessor for speech recognition emulates the fluid ducts with two 4680-element diffusive grids, the basilar membrane with 360 2nd-order sections, and the auditory nerve with 2160 pulse-frequency modulators. Integrated in 10.9mm2in 0.25mum CMOS and consuming 52mW, this silicon cochlea employs active bidirectional coupling, a selective amplification mechanism that sharpens tuning (Q10 is 2.7) and controls gain (24dB compression)
Keywords :
CMOS integrated circuits; biomedical electronics; ear; microprocessor chips; neural chips; prosthetics; speech recognition; 0.25 micron; 24 dB; 52 mW; CMOS integrated circuit; active bidirectional coupling; basilar membrane; cochlea-based preprocessor; cochlear amplifier; selective amplification mechanism; speech preprocessor; speech recognition; Acoustic noise; Cellular phones; Damping; Filter bank; Frequency; Gain control; Personal digital assistants; Pulse modulation; Silicon; Speech recognition;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Circuits Conference, 2006. ISSCC 2006. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
ISSN :
0193-6530
Print_ISBN :
1-4244-0079-1
Type :
conf
DOI :
10.1109/ISSCC.2006.1696289
Filename :
1696289
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2570960
بازگشت