TY - GEN
T1 - Speech recognition on an FPGA using discrete and continuous hidden Markov models
AU - Melnikoff, Stephen
AU - Quigley, Steven
AU - Russell, Martin
N1 - The original publication is available at www.springerlink.com
PY - 2002/1/1
Y1 - 2002/1/1
N2 - Speech recognition is a computationally demanding task, particularly the stage which uses Viterbi decoding for converting pre-processed speech data into words or sub-word units. Any device that can reduce the load on, for example, a PC’s processor, is advantageous. Hence we present FPGA implementations of the decoder based alternately on discrete and continuous hidden Markov models (HMMs) representing monophones, and demonstrate that the discrete version can process speech nearly 5,000 times real time, using just 12% of the slices of a Xilinx Virtex XCV1000, but with a lower recognition rate than the continuous implementation, which is 75 times faster than real time, and occupies 45% of the same device.
AB - Speech recognition is a computationally demanding task, particularly the stage which uses Viterbi decoding for converting pre-processed speech data into words or sub-word units. Any device that can reduce the load on, for example, a PC’s processor, is advantageous. Hence we present FPGA implementations of the decoder based alternately on discrete and continuous hidden Markov models (HMMs) representing monophones, and demonstrate that the discrete version can process speech nearly 5,000 times real time, using just 12% of the slices of a Xilinx Virtex XCV1000, but with a lower recognition rate than the continuous implementation, which is 75 times faster than real time, and occupies 45% of the same device.
M3 - Conference contribution
T3 - Lecture Notes in Computer Science
SP - 202
EP - 211
BT - Field-Programmable Logic and Applications. Reconfigurable Computing Is Going Mainstream 12th International Conference, FPL 2002, Montpellier, France September 2-4, 2002. Proceedings
PB - Springer
T2 - 12th International Conference on Field-Programmable Logic and Applications, Sep 02-04, 2002. MONTPELLIER, France
Y2 - 1 January 2002
ER -