Harvey Fox Silverman Professor of Engineering

Brown Affiliations

Research Areas

research overview

Professor Silverman's research focuses on algorithms for the building and use of real-time digital signal processing/speech processing based systems. Work is underway on the integration of algorithms with hardware and software, in particular, for microphone-array systems, speech recognition systems, and reconfigurable parallel processors.

research statement

Research focuses on algorithms for the building and use of real-time digital signal processing/speech processing based systems. Work is underway on the integration of algorithms with hardware and software, in particular, for microphone-array systems, speech recognition systems, and reconfigurable parallel processors. Most recent work has focused on micrfophone-array research. A microphone-array system that supports real-time processing and data acquisition for 512 microphones has been in operation for seven years. It is still in use for algorithm research and data acquisition. In past work, speech recognition was a major focus. Also, Professor Silverman's group introduced important new concets on the use of FPGA's in developing reconfigurable computing. The current emphasis on microphone-array systems has resulted in three patents and license agreements with three industrial organizations. Prior to joining the Brown faculty in 1980, Professor Silverman held a position at IBM at the Thomas J. Watson Research Center from 1970 to 1980, working in the areas of digital image processing, computer performance analysis, and speech recognition. Dr. Silverman has been the Director of the Laboratory for Engineering Man/Machine Systems in the Division of Engineering at Brown since its founding in 1981. He was a member of the IEEE Acoustics, Speech and Signal Processing Technical Committee on Digital Signal Processing and was its Chairman from 1979 until 1983. He was the General Chairman of the 1977 ICASSP in Hartford. He received an IEEE Centennial Medal in 1984. Professor Silverman was a Trustee of Trinity College in Hartford, CT, 1994-2003, and was named a Fellow of IEEE in December 1996. He served as Dean of Engineering at Brown from 1991 until 1998. Professor Silverman's research group has averaged 5 Ph.D. students, and 23 Ph.D.'s have been awarded over 1988-2005.

funded research

[2006] LEMS affiliate interface for Analog Devices \$35,000
[2005] \$50,000 unrestricted, zero overhead gift from the Janci
Foundation received to support my research into microphone array
controlled video teleconferencing.
[2005] LEMS affiliate interface for Analog Devices \$35,000
[2004] \$50,000 unrestricted, zero overhead gift from the Janci
Foundation received to support my research into microphone array
controlled video teleconferencing.
[2004] LEMS affiliate interface for Analog Devices \$35,000 [2003]
[2004] License fees and royalties from Microphone Array patents
from Acoustic Magic \$10,000.
[2003] Unrestricted \$25,000 grant (with Iris Bahar) from Microsoft to support summer students and research on the talking android head.
[2003] \$35,000 unrestricted, zero overhead gift from the
Janci Foundation received to support my research into microphone
array controlled video teleconferencing.
[2002] LEMS affiliate interface for Analog Devices \$35,000
[2002] License fees and royalties from Microphone Array patents
from Acoustic Magic[2003] \$7,000.
[2002] \$35,000 unrestricted, zero overhead gift from the
Janci Foundation received to support my research into microphone
array controlled video teleconferencing.
[2002] \$5000 gift from Santo
Politi of Charles River Associates to support a summer student.
[2002] License fees and royalties from Microphone Array patents
released in 2002 of an additional \$40,000.
[2001] \$50,000
unrestricted, zero overhead gift from the Janci Foundation
received to support my research into microphone array controlled
video teleconferencing.
[2001] LEMS affiliate interface for Analog
Devices \$35,000
[2001] License fees and royalties from
Microphone Array patents released in 2001 of an additional
\$450,124.
$100,000 unrestricted, zero overhead gift from
the Janci Foundation received to support my research into
Microphone Arrays for Speech Recognition
[1998-2000] LEMS affiliate
interface for GTECH - \$35,000 [1998-2000]
LEMS affiliate interface for Analog Devices \$35,000 [1995-2000] License fees and royalties from Microphone Array patents have generated about \$1,250,000 over 1998-2000, with about \$200,000 going to support my research, about \$200,000 each going to Divisional and
LEMS endowments.
National Science Foundation Grant for Parallel Architectures for
Speech Recognition
[1995-98] approx \$300,000 [1995-1998]
National Science Foundation Teaching Equipment Grant for \$81,000 for undergraduate workstations [1995-1997]
[1996] CRASP/DARPA grant for \$50,000 [1996]
Experimental Systems National Science Foundation grant (with James Flanagan of Rutgers) for building large microphone array - approx. \$ 1,000,000 [1994-1996].
[1993-95] Defense Advanced Research Projects Agency (DARPA) grant with David Cooper for Target Recognition approx. \$350,000
[1992-94] National Science Foundation Grant for Parallel Architectures for Speech Recognition approx. \$300,000 [1992-1994]
[1991-92] National Science Foundation Grant (with S. Ghosh) on Reconfigurable Computing approx \$170,000 [1991-1992]
[1989-91] National Science Foundation/Defense Advanced Research Projects Agency Grant on Microphone Array Technology approx \$300,000 [1989-1991]
[1989-91] National Science Foundation Grant for Parallel Architectures for Speech Recognition approx \$350,000 [1989-1991]
[1986-88] National Science Foundation Grant for Parallel Architectures for Speech Recognition approx \$566,000 [1986-1988]
[1982-85] National Science Foundation Grant for Parallel Architectures for Speech Recognition approx \$400,000 [1982-1985]
[1983] Army Research Office (DOD) Equipment Grant (with D. B. Cooper)
approx \$122,000 [1983]
[1982] National Science Foundation Equipment Grant (with D. C. A. Bulterman) approx \$108,000 [1982]
[1989] Hewlett-Packard Equipment Grant \$500,000 [1989]
BERTEX Interface for Division:\$5000 each from A.T. Cross[1992], Schroff[1992-95], Hasbro[1992-94],Telco/Metrabyte[1993-95],American Power Conversion [1993-95], Gtech[1992-95], Cookson America [1992-95],NUWC[1993-95], Narragansett Electric[1994-95], Astro Med[1994-95], Augat[1995], Texas Instruments[1996], Gorham[1996]

LEMS affiliate interface for Polycom - \$25,000 [1998]
LEMS affiliate interface for VTEL - \$35,000/year [1994-96]
LEMS Affiliate interface for GTECH - \$18,000/year [1987-1989]
\$36,000/year [1990-1994]
LEMS Affiliate interface for Sanders Associates - \$30,000/year
[1984-1991], \$20,000 [1992], \$10,000 [1993], \$20,000[1994-95]
LEMS Affiliate interface for Bellcore - \$30,000/year [1990-1991]
\$15,000 [1992]
LEMS Affiliate interface for AT\&T - \$30,000/year [1984-1985]
\$35,000/year [1987- ]
LEMS Fellowship sponsored by Metrabyte \$15,000 [1992]
LEMS Affiliate interface for AMP - \$30,000/year [1984-1988]
\$35,000/year [1991]
LEMS Affiliate interface for US West - \$35,000/year [1988]
Analog Devices Grant for Student Research Projects Program
and Affiliation \$175,000 [1988-1992] (only \$105,000 received).
Analog Devices grant for Advasnced Grad Student/Post-Doc Support
\$125,000 [1988-1992] (only \$75,000 received).
Analog Devices Grant (with D. B. Cooper) \$150,000 [1982-87]
IBM Fellowships 3 years - \$60,000 (J. T. Rayfield) [1984-1987]
LEMS Affiliate interface for Augat - \$30,000/year [1984-1988]
(\$60,000 cash, and \$60,000 parts and services)
LEMS Affiliate interface for IBM - \$25,000/year [1984 - 1985]
IBM New Research Grant, \$75,000 [1981-84]
GLAK Grant, \$5,000 [1982]
Gould, Inc. (with D. C. A. Bulterman), \$15,000 [1984]
Tektronix Matching Grant \$15,000 [1985].
Equipment donations from Motorola, National Semiconductor,
TI, Monolithic Memories, Augat, AT\&T, Schroff, AMD, Viewlogic, Xilinx.