Systems And Crossover Networks
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The Design Of Active Crossovers
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Author : Douglas Self
language : en
Publisher: Taylor & Francis
Release Date : 2012-08-06
The Design Of Active Crossovers written by Douglas Self and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08-06 with Technology & Engineering categories.
The Design of Active Crossovers is a unique guide to the design of high-quality circuitry for splitting audio frequencies into separate bands and directing them to different loudspeaker drive units specifically designed for handling their own range of frequencies. Traditionally this has been done by using passive crossover units built into the loudspeaker boxes; this is the simplest solution, but it is also a bundle of compromises. The high cost of passive crossover components, and the power losses in them, means that passive crossovers have to use relatively few parts. This limits how well the crossover can do its basic job. Active crossovers, sometimes called electronic crossovers, tackle the problem in a much more sophisticated manner. The division of the audio into bands is performed at low signal levels, before the power amplifiers, where it can be done with much greater precision. Very sophisticated filtering and response-shaping networks can be built at comparatively low cost. Time-delay networks that compensate for phyical misalignments in speaker construction can be implemented easily; the equivalent in a passive crossover is impractical because of the large cost and the heavy signal losses. Active crossover technology is also directly applicable to other band-splitting signal-processing devices such as multi-band compressors. The use of active crossovers is increasing. They are used by almost every sound reinforcement system, by almost every recording studio monitoring set-up, and to a small but growing extent in domestic hifi. There is a growing acceptance in the hifi industry that multi-amplification using active crossovers is the obvious next step (and possibly the last big one) to getting the best possible sound. There is also a large usage of active crossovers in car audio, with the emphasis on routing the bass to enormous low-frequency loudspeakers. One of the very few drawbacks to using the active crossover approach is that it requires more power amplifiers; these have often been built into the loudspeaker, along with the crossover, and this deprives the customer of the chance to choose their own amplifier, leading to resistance to the whole active crossover philosophy. A comprehensive proposal for solving this problem is an important part of this book. The design of active crossovers is closely linked with that of the loudspeakers they drive. A chapter gives a concise but complete account of all the loudspeaker design issues that affect the associated active crossover. This book is packed full of valuable information, with virtually every page revealing nuggets of specialized knowledge never before published. Essential points of theory bearing on practical performance are lucidly and thoroughly explained, with the mathematics kept to an essential minimum. Douglas' background in design for manufacture ensures he keeps a wary eye on the cost of things. Features: Crossover basics and requirements The many different crossover types and how they work Design almost any kind of active filter with minimal mathematics Make crossover filters with very low noise and distortion Make high-performance time-delay filters that give a constant delay over a wide range of frequency Make a wide variety of audio equaliser stages: shelving, peaking and notch characteristics All about active crossover system design for optimal noise and dynamic range There is a large amount of new material that has never been published before. A few examples: using capacitance multipliers in biquad equalisers, opamp output biasing to reduce distortion, the design of NTMTM notch crossovers, the design of special filters for filler-driver crossovers, the use of mixed capacitors to reduce filter distortion, differentially elevated internal levels to reduce noise, and so on. Douglas wears his learning lightly, and this book features the engaging prose style familiar from his other books The Audio Power Amplifier Design Handbook, Self on Audio, and the recent Small Signal Audio Design.
Sound System Engineering
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Author : Don Davis
language : en
Publisher: Taylor & Francis
Release Date : 2013-06-26
Sound System Engineering written by Don Davis and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-26 with Technology & Engineering categories.
Long considered the only book an audio engineer needs on their shelf, Sound System Engineering provides an accurate, complete and concise tool for all those involved in sound system engineering. Fully updated on the design, implementation and testing of sound reinforcement systems this great reference is a necessary addition to any audio engineering library. Packed with revised material, numerous illustrations and useful appendices, this is a concentrated capsule of knowledge and industry standard that runs the complete range of sound system design from the simplest all-analog paging systems to the largest multipurpose digital systems.
Information Systems And Technologies For Network Society Proceedings Of The Ipsj International Symposium
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Author : Yahiko Kambayashi
language : en
Publisher: World Scientific
Release Date : 1997-09-09
Information Systems And Technologies For Network Society Proceedings Of The Ipsj International Symposium written by Yahiko Kambayashi and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-09-09 with categories.
This volume contains technical papers and panel position papers selected from the proceedings of the International Symposium on Information Systems and Technologies for Network Society, held together with the IPSJ (information processing society of Japan) National Convention, in September 1997. Papers were submitted from all over the world, especially from Japan, Korea and China. Since these countries are believed to form one of the major computer manufacturing centers in the world, a panel on “Computer Science Education for the 21st Century” was set up. A special session on the Japanese project on Software Engineering invited representative researchers from the project, which is supported by the Ministry of Education, Japan.
Optical Switching Networking And Computing For Multimedia Systems
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Author : Mohsen Guizani
language : en
Publisher: CRC Press
Release Date : 2002-05-15
Optical Switching Networking And Computing For Multimedia Systems written by Mohsen Guizani and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-05-15 with Science categories.
This volume reveals the latest research on commercial systems with up to 160 OC-48 channels, optical ATM switch architectures, optical multiprotocol lambda and label switching, synchronous optical networks and digital hierarchy, and the Internet Protocol layer. The text includes recent developments in the routing efficiency of multihop optical networks supported by wavelength division multiplexing (WDM) with limited wavelength conversion. It also explores different routing techniques in WDM networks for virtual topology mapping, wavelength routing and assignment, dynamic routing, QoS provisions, and multicasting. The book examines challenges facing carriers and service providers in expanding optical networking capabilities for the next generation Internet.
Audio Electronics
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Author : John Linsley Hood
language : en
Publisher: Elsevier
Release Date : 1998-11-16
Audio Electronics written by John Linsley Hood and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-11-16 with Technology & Engineering categories.
Audio Electronics is a unique electronics text in that it focuses on the electronics of audio design and explores the principles and techniques that underly the successful design and usage of analog and digital equipment. The second edition includes new material on the latest developments in the field: digital radio and television, Nicam 728, and the latest Dolby noise reduction systems. John Linsley Hood is responsible for numerous amplifier designs that have led the way to better sound, and has also kept up a commentary on developments in audio in magazines such as The Gramophone, Electronics in Action and Electronics World. Up-to-date material on the latest technological developments John Hood is a well-known and respected commentator on this industry
Loudspeaker And Headphone Handbook
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Author : John Borwick
language : en
Publisher: Taylor & Francis
Release Date : 2012-09-10
Loudspeaker And Headphone Handbook written by John Borwick and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-10 with Technology & Engineering categories.
Written by a team of experts, the Loudspeaker and Headphone Handbook provides a detailed technical reference of all aspects of loudspeakers and headphones: from theory and construction of transducer drive units and enclosures, to such practical matters as construction, applications in rooms, public address, sound reinforcement, studio monitoring and musical instruments. Loudspeaker measurements and subjective evaluation are treated in equal detail and headphones are discussed comprehensively. This third edition takes account of recent significant advances in technology, including: · the latest computer-aided design systems · digital audio processing · new research procedures · the full range of loudspeakers · new user applications.
Research And Development In Intelligent Systems Xviii
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Author : Frans Coenen
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Research And Development In Intelligent Systems Xviii written by Frans Coenen and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Computers categories.
M.A. BRAMER University of Portsmouth, UK This volume comprises the refereed technical papers presented at ES200 l, the Twenty-fIrst SGES International Conference on Knowledge Based Systems and Applied ArtifIcial Intelligence, held in Cambridge in December 200 l, together with an invited keynote paper by Professor Derek Sleeman. The conference was organised by SGES, the British Computer Society Specialist Group on Knowledge Based Systems and Applied ArtifIcial Intelligence. The papers in this volume present new and innovative developments in the fIeld, divided into sections on Machine Learning, Constraint Satisfaction, Agents, Knowledge Representation, Knowledge Engineering, and Intelligent Systems. The refereed papers begin with a paper entitled 'Detecting Mismatches Among Experts' Ontologies Acquired Through Knowledge Elicitation', which describes a systematic approach to the analysis of discrepancies within and among experts' ontologies. This paper was judged to be the best refereed technical paper submitted to the conference. The remaining papers are devoted to topics in important areas such as agents, knowledge engineering, knowledge representation, planning and constraint satisfaction, with machine learning again the largest topic covered in terms of the number of papers accepted for publication. This is the eighteenth volume in the Research and Development series. The Application Stream papers are published as a companion volume under the title Applications and Innovations in Intelligent Systems IX.
Modeling And Simulation Of Computer Networks And Systems
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Author : Faouzi Zarai
language : en
Publisher: Morgan Kaufmann
Release Date : 2015-04-21
Modeling And Simulation Of Computer Networks And Systems written by Faouzi Zarai and has been published by Morgan Kaufmann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-21 with Computers categories.
Modeling and Simulation of Computer Networks and Systems: Methodologies and Applications introduces you to a broad array of modeling and simulation issues related to computer networks and systems. It focuses on the theories, tools, applications and uses of modeling and simulation in order to effectively optimize networks. It describes methodologies for modeling and simulation of new generations of wireless and mobiles networks and cloud and grid computing systems. Drawing upon years of practical experience and using numerous examples and illustrative applications recognized experts in both academia and industry, discuss: Important and emerging topics in computer networks and systems including but not limited to; modeling, simulation, analysis and security of wireless and mobiles networks especially as they relate to next generation wireless networks Methodologies, strategies and tools, and strategies needed to build computer networks and systems modeling and simulation from the bottom up Different network performance metrics including, mobility, congestion, quality of service, security and more... Modeling and Simulation of Computer Networks and Systems is a must have resource for network architects, engineers and researchers who want to gain insight into optimizing network performance through the use of modeling and simulation. Discusses important and emerging topics in computer networks and Systems including but not limited to; modeling, simulation, analysis and security of wireless and mobiles networks especially as they relate to next generation wireless networks Provides the necessary methodologies, strategies and tools needed to build computer networks and systems modeling and simulation from the bottom up Includes comprehensive review and evaluation of simulation tools and methodologies and different network performance metrics including mobility, congestion, quality of service, security and more
Embedded And Networking Systems
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Author : Gul N. Khan
language : en
Publisher: CRC Press
Release Date : 2013-09-24
Embedded And Networking Systems written by Gul N. Khan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-24 with Computers categories.
Embedded and Networking Systems: Design, Software, and Implementation explores issues related to the design and synthesis of high-performance embedded computer systems and networks. The emphasis is on the fundamental concepts and analytical techniques that are applicable to a range of embedded and networking applications, rather than on specific embedded architectures, software development, or system-level integration. This system point of view guides designers in dealing with the trade-offs to optimize performance, power, cost, and other system-level non-functional requirements. The book brings together contributions by researchers and experts from around the world, offering a global view of the latest research and development in embedded and networking systems. Chapters highlight the evolution and trends in the field and supply a fundamental and analytical understanding of some underlying technologies. Topics include the co-design of embedded systems, code optimization for a variety of applications, power and performance trade-offs, benchmarks for evaluating embedded systems and their components, and mobile sensor network systems. The book also looks at novel applications such as mobile sensor systems and video networks. A comprehensive review of groundbreaking technology and applications, this book is a timely resource for system designers, researchers, and students interested in the possibilities of embedded and networking systems. It gives readers a better understanding of an emerging technology evolution that is helping drive telecommunications into the next decade.
Design And Control Of Intelligent Robotic Systems
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Author : Dikai Liu
language : en
Publisher: Springer
Release Date : 2009-01-22
Design And Control Of Intelligent Robotic Systems written by Dikai Liu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-01-22 with Technology & Engineering categories.
With the increasing applications of intelligent robotic systems in various ?elds, the - sign and control of these systems have increasingly attracted interest from researchers. This edited book entitled “Design and Control of Intelligent Robotic Systems” in the book series of “Studies in Computational Intelligence” is a collection of some advanced research on design and control of intelligent robots. The works presented range in scope from design methodologies to robot development. Various design approaches and al- rithms, such as evolutionary computation, neural networks, fuzzy logic, learning, etc. are included. We also would like to mention that most studies reported in this book have been implemented in physical systems. An overview on the applications of computational intelligence in bio-inspired robotics is given in Chapter 1 by M. Begum and F. Karray, with highlights of the recent progress in bio-inspired robotics research and a focus on the usage of computational intelligence tools to design human-like cognitive abilities in the robotic systems. In Chapter 2, Lisa L. Grant and Ganesh K. Venayagamoorthy present greedy search, particle swarm optimization and fuzzy logic based strategies for navigating a swarm of robots for target search in a hazardous environment, with potential applications in high-risk tasks such as disaster recovery and hazardous material detection.