W. Harvey Holmes

Senior Visiting Fellow

	Telephone:	+61 (2) 9385 4033
	Facsimile:	+61 (2) 9385 5993
	Email:
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Qualifications

	Ph.D. in Electrical Engineering, Cambridge University, 1966.
	M.Eng.Sc. in Electrical Engineering, University of Sydney, 1966
	B.E. (Hons 1) in Electrical Engineering,University of Sydney, 1961
	B.Sc. in Mathematics and Physics, University of Sydney, 1959

Employment

	The University of New South Wales, Associate Professor, 1973-1999
	The University of New South Wales, Senior Lecturer, 1969-1973
	Passac Pty Ltd, Director of Research and Development, 1988-1990
	Siemens AG, Central Communications Laboratory, Munich, Research Engineer, 1965-1968

Research Interests

	General speech and audio signal processing
Fundamental aspects of speech and audio processing, including modelling of the human auditory system, perceptual aspects, signal analysis and representation, quantization, signal processing algorithms. Objective speech and audio quality measures for quality of service assessment. CELP and sinusoidal speech coding algorithms. Wideband speech coding.
	Speech and audio enhancement
Estimation of true speech or audio signals from corrupted signals, estimation of noise parameters in the presence of speech or music, noise reduction, dereverberation, spectral correction (equalization), bandwidth extension.
	Digital hearing aids
Multiband digital compression and expansion methods for use in hearing aids. Noise reduction and anti-howl techniques.
	Loudspeakers and digital audio
Model-based estimation of loudspeaker parameters. Design of phaselinear and time aligned crossovers and of equalizers in both analogue and digital technology. Digital control of loudspeaker arrays.
	General digital signal processing (DSP)
Theory of digital signal processing, especially parameter estimation, parametric signal and spectral analysis, prediction, smoothing, vector quantization, deconvolution, sequence estimation, linear and nonlinear filtering. Other applications of DSP, including digital and analogue communications and seismic signal processing.
	Active and adaptive filters
Computer aided optimized analogue and digital filter design. Parasitic effects in active filters. Novel active and adaptive filters. Gyrator filters. Adaptive equalizers.
	Electronic and computer musical aids
Use of electronics and computers in musical performance, including novel instruments and effects.
	Engineering education
Use of multimedia methods in teaching. Aims of engineering education. Teaching engineering design. Group teaching methods. Self and peer marking.

Professional Interests and Industrial Consulting

	Associate Editor, IEEE Transactions on Circuits and Systems, 1977-1979
	Member, Speech Technical Committee, IEEE Signal Processing Society, 1993-1996
	Chairman, Digital Video Services Task Group, Standards Australia, 1995
	Chairman or Committee Member, IREE Sydney Audio Group, 1973-1989
	Committee Member of many IEEE, IREE and other conferences

Selected Publications