32nd International AES Conference

by Professor Stanley P. Lipshitz.
Applied Mathematics & Physics, and Audio Research Group. University of Waterloo. Waterloo, Ontario N2L 3G1. Canada

1.1 FULLY AUTOMATIC LOUDSPEAKER-ROOM ADAPTATION � the RoomPerfect system
JAN ABILDGAARD PEDERSEN AND KASPER THOMSEN
Lyngdorf Audio, Skive, DK-7800, Denmark

1.2 NATURAL TIMBRE IN ROOM CORRECTION SYSTEMS (PART II)
FARES EL-AZM AND JAN ABILDGAARD PEDERSEN
Lyngdorf Audio, Skive, DK-7800, Denmark

1.3 TIME BASED ROOM CORRECTION SYSTEM FOR LOW FREQUENCIES USING MULTIPLE LOUDSPEAKERS
SOFUS BIRKEDAL NIELSEN, ADRIAN CELESTINOS
Acoustics, Department of Electronic Systems, Aalborg University, Denmark

1.4 ADAPTIVE IIR FILTERS FOR LOUDSPEAKER PARAMETER TRACKING
ANDREW BRIGHT
Nokia TP, Helsinki, Finland

2.1 Modeling Loudspeaker Non-Linearities
Finn T. Agerkvist
�rsted-DTU, Technical University, Lyngby, Building 352, 2800, Denmark

2.2 OPTIMAL DESIGN OF LOUDSPEAKERS WITH NONLINEAR CONTROL
WOLFGANG KLIPPEL
Klippel GmbH, Dresden, University of Technology, Dresden, Germany

P.1 DESIGN AND IMPLEMENTATION OF A DSP ENHANCED PORTABLE SPEAKER SYSTEM
ANTHONY MCMAHON(1), IAIN STIRLING(2), ROD HABESHAW(3), JORDI MUNOZ(4), EUGEN PFANN(5)
(1) Institute for System Level Integration, Alba Centre, Alba Campus, Livingston, Scotland. (2) Steepest Ascent Limited, Glasgow, Scotland, UK. (3) SFX Technologies Limited, Dunfermline, Scotland, UK. (4) School of Engineering, Napier University, Edinburgh. (5) Department of EEE, University of Strathclyde, Glasgow.

TD 1 - A DSP ENHANCED PORTABLE SPEAKER SYSTEM
Exhibition item is subject of paper P.1 (see above).

TD 2 - Klippel GmbH
Wolfgang Klippel

TD 3 - A LOUDSPEAKER MANAGEMENT SYSTEM WITH FIR/IIR FILTERING
Rainer Thaden, Four-Audio, Germany

TD 4 � A new DSP Crossover Platform
Al Clark, Danville Signal Processing and DSP Concepts

Room 1: Lyngdorf Audio, Denmark

Room 2: WaveCapture, Sweden

Room 3: Sonion

3.1 MUSICAL TRANSDUCER-LESS IDENTIFICATION OF LINEAR LOUDSPEAKER PARAMETERS
BO ROHDE PEDERSEN(1), AND PER RUBAK(2)
(1) Department of Software and Electronics, Aalborg University, Esbjerg, Denmark. (2) Acoustic department, Aalborg University, Aalborg, Denmark.

3.2 A METHOD FOR OBJECTIVE SOUND QUALITY EVALUATION OF HEADPHONE
HO YOUNG SUNG, JONGBAE KIM, SEONGCHEOL JANG
Audio Lab, Digital Media R&D Center, Samsung Electronics Co., Ltd. Suwon, Korea.

4.1 Invited paper: Special Digital Filters for Audio Reproduction
Matti Karjalainen et al.
Helsinki University of Technology

4.2 OPTIMIZING THE MAGNITUDE RESPONSE OF MATCHED Z-TRANSFORM FILTERS (�MZTI�) FOR LOUDSPEAKER EQUALIZATION
DAVID W. GUNNESS, OJAS S. CHAUHAN
Eastern Acoustic Works, Inc., Whitinsville, Massachusetts,USA

4.3 REALIZATION OF LINEAR PHASE CROSSOVER LOUDSPEAKER NETWORK USING IIR FILTERS
D. Sookcharoenphol(1), K. Janjitrapongvej(1), and S. Tomiyama(2)
(1) Information Engineering Department, Facultly of Engineering, KMITL, Bangkok, THAILAND. (2) Department of Embedded Technology, School of Information Technology and Science, TOKAI University, Kanagawa, JAPAN.

4.4 A LOUDSPEAKER MANAGEMENT SYSTEM WITH FIR/IIR FILTERING
RAINER THADEN(1), SWEN M�LLER(2), GOTTFRIED BEHLER(3), ANSELM GOERTZ(1), MICHAEL MARKARSKI(1), JOCHEN KLEBER(4)
(1) Four Audio GmbH & Co. KG, Aachen, Germany. (2) Divis�o de Ac�stica, INMETRO, Xer�m, Brazil. (3) Institute of Technical Acoustics, RWTH-Aachen University, Germany, (4) Camco GmbH, Germany.

5.1 ACOUSTIC AND TRANSDUCER CONSIDERATIONS FOR DSP LOUDSPEAKERS
MARSHALL BUCK
Psychotechnology Inc., Los Angeles, California, USA

5.2 Application of Linear-Phase Digital Crossover Filters to Pair-Wise Symmetric Multi-Way Loudspeakers Part 1: Control of Off-Axis Frequency Response
ULRICH HORBACH(1), AND D. B. (DON) KEELE, JR.(2)
(1) Harman Consumer Group, Northridge, California, USA. (2) Harman/Becker Automotive Systems, Martinsville, Indiana, USA.

5.3 Application of Linear-Phase Digital Crossover Filters to Pair-Wise Symmetric Multi-Way Loudspeakers Part 2: Control of Beamwidth and Polar Shape
ULRICH HORBACH(1), AND D. B. (DON) KEELE, JR.(2)
(1) Harman Consumer Group, Northridge, California, USA. (2) Harman/Becker Automotive Systems, Martinsville, Indiana, USA.

6.1 Invited Paper: SHAPES - a Scalable Parallel HW/SW Architecture Applied to Wave Field Synthesis
Thomas Sporer(1), Andreas Franck(1), Iuliana Bacivarov(2), Michael Beckinger(1), Wolfgang Haid(2), Kai Huang(2), Lothar Thiele(2), Pier S. Paolucci(3), Piergiovanni Bazzana(3), Piero Vicini(4), Jianjiang Ceng(5), Stefan Kraemer(5), Rainer Leupers(5). (1) Fraunhofer IDMT, (2) Swiss Federal Institute of Technology Zurich, (3) ATMEL Roma, (4) INFN, Dip. Fisica Univ. Roma, (5) Institute for Software for Systems on Silicon, RWTH Aachen University.

6.2 Reproduction of Moving Sound Sources by Wave Field Synthesis: An Analysis of Artifacts
Andreas Franck(1), Andreas Gr�afe(1,2), Thomas Korn(1), Michael Strau�(1)
(1) Fraunhofer IDMT, Ilmenau, 98693, Germany. (2) IOSONO GmbH, Ilmenau, 98693, Germany.

Coffe break

6.3 A DIGITALLY CONTROLLED TWO DIMENSIONAL LOUDSPEAKER ARRAY
PAOLO MARTIGNON(1), FONS ADRIAENSEN(1), DANIELE TORELLI(1), ANGELO FARINA(1)
(1) L.A.E., Laboratory of Acoustics and Electroacoustics, Parma, Italy.

6.4 Voice Activity Detection using Microphone Array
Jaeyoun Cho(1), Ashok Krishnamurthy(2)
(1) Samsung Electronics, Digital Media R&D Center, Suwon, Korea. (2) Ohio State University, Columbus, OH 43210, USA.

6.5 A SOUND SOURCES AND REFLECTIONS LOCALIZATION METHOD FOR REVERBERANT ROOMS USING ARRAYS OF MICROPHONES
SIMON ROPER, TIM COLLINS
Electronic, Electrical and Computer Engineering, The University of Birmingham, UK

Panelists: David Gunness, Eastern Acoustic Works Inc., USA. Wolfgang Klippel, Klippel GmbH, Germany. Jan Abildgaard Pedersen, Lyngdorf Audio, Denmark. Thomas Sporer, Fraunhofer IDMT, Germany.