Title :
A VLSI chip for isolated speech recognition system
Author :
Kim, Sung-Nam ; Hwang, In-Chul ; Kim, Young-Woo ; Kim, Soo-Won
Author_Institution :
Dept. of Electron. Eng., Korea Univ., Seoul, South Korea
fDate :
8/1/1996 12:00:00 AM
Abstract :
A VLSI processor is designed for the small-scale isolated speech recognition applications. It is a dedicated processor which detects endpoint, extracts LPC (linear predictive coefficient) cepstral coefficients from the speech signal, and computes the spectral distances using a dynamic time warping (DTW) technique. The designed chip can recognize 1000 isolated words per second with an average recognition accuracy of 90.3%. It is designed in a 0.8 μm CMOS technology, includes 66,760 gates, and runs with a 10 MHz clock
Keywords :
CMOS digital integrated circuits; VLSI; cepstral analysis; digital signal processing chips; prediction theory; speech recognition; 0.8 micron; 10 MHz; CMOS technology; DTW; LPC cepstral coefficients extraction; VLSI chip; VLSI processor; average recognition accuracy; clock; dedicated processor; dynamic time warping; endpoint detection; gates; isolated speech recognition system; isolated word recognition; linear predictive coefficient; spectral distances; speech signal; CMOS technology; Cepstral analysis; Clocks; Isolation technology; Linear predictive coding; Process design; Signal processing; Speech processing; Speech recognition; Very large scale integration;
Journal_Title :
Consumer Electronics, IEEE Transactions on
