3 D Audio Using Loudspeakers

1 Loudspeaker placement . Kulkarni has suggested that crosstalk canceller speakers should be mounted on opposite sides of the head at high elevations , so that the speaker to ear transfer functions are relatively flatt .

Author: William G. Gardner

Publisher: Springer Science & Business Media

ISBN: 9780792381563

Category: Technology & Engineering

Page: 154

View: 803

3-D Audio Using Loudspeakers is concerned with 3-D audio systems implemented using a pair of conventional loudspeakers. A well-known problem with these systems is the requirement that the listener be properly positioned for the 3-D illusion to function correctly. This book proposes using the tracked position of the listener's head to optimize the acoustical presentation, thus producing a much more realistic illusion over a larger listening area than existing loudspeaker 3-D audio systems. Head-tracking can be accomplished by applying pattern recognition techniques to images obtained from a video camera. Thus, an immersive audio environment can be created without donning headphones or other equipment. 3-D Audio Using Loudspeakers discusses the theory, implementation, and testing of a head-tracked loudspeaker 3-D audio system. Crosstalk cancellers that can be steered to the location of a tracked listener are described. The objective performance of these systems has been evaluated using simulations and acoustical measurements made at the ears of human subjects. Many sound localization experiments were also conducted; the results show that head-tracking both significantly improves localization when the listener is displaced from the ideal listening location, and also enables dynamic localization cues. Much of the theory and experimental results presented are also applicable to loudspeaker 3-D audio systems in general, not just head-tracked ones. 3-D Audio Using Loudspeakers is of interest to researchers studying virtual acoustic displays, and to engineers developing the same. The book serves as a valuable reference to anyone working in this field.


It was recognised a long time ago that many Californian designers of hi-fi loudspeakers aimed for different ... where the reflected response dominates the direct response from the loudspeakers, a loudspeaker with a brighter anechoic ...

Author: Philip Newell

Publisher: Routledge

ISBN: 1351371207

Category: Technology & Engineering

Page: 520

View: 727

Loudspeakers: For Music Recording and Reproduction, Second Edition is a comprehensive guide, offering the tools and understanding needed to cut out the guesswork from loudspeaker choice and set-up. Philip Newell and Keith Holland, with the assistance of Sergio Castro and Julius Newell, combine their years of experience in the design, application, and use of loudspeakers to cover a range of topics from drivers, cabinets, and crossovers, to amplifiers, cables, and surround sound. Whether using loudspeakers in a recording studio, mastering facility, broadcasting studio, film post-production facility, home, or musician’s studio, or if you simply aspire to improve your music-production system this book will help you make the right decisions. This new edition provides significant updates on the topics of digital control, calibration, and cinema loudspeaker systems.

High Performance Loudspeakers

Cohen, A. B., Hi Fi Loudspeakers and Enclosures, (1975). Colloms, M., Developments in loudspeaker system design, Acoust. Bull., 20(6) (Nov.–Dec. 1995), Institute of Acoustics. Geddes, E. and Geddes, L., Audio Transducers (2002).

Author: Martin Colloms

Publisher: John Wiley & Sons

ISBN: 1118706269

Category: Technology & Engineering

Page: 696

View: 427

Provides a technology overview of what goes into a high performance loudspeaker and covers all the latest advances in the field The design of high performance loudspeakers requires a mix of developed skills in electroacoustics, high fidelity sound reproduction and subjective evaluation. Taking a designer’s view of the subject, this new edition of High Performance Loudspeakers, Seventh Edition provides a comprehensive, timely and practical knowledge base to aid the design of superior loudspeaker systems fit for purpose. It is updated throughout with the latest progress in research and technology, synthesis and analysis, digital signal processing incorporated products, automated production test systems and wireless compact designs. This Seventh Edition of the highly successful guide to the design and specifications of high quality loudspeakers and loudspeaker systems addresses the issue of where higher performance and sound quality is required and shows how the numerous considerations — including application, target price, size, aspiration and particular market — lead to a complex mix of design and engineering decisions. The book has also been substantially revised to reflect the many changes in the technology of loudspeakers and includes two brand new chapters — one covering ultra-compact systems and DSP integration, and the second providing details of a worked example of the loudspeaker systems design process. Offers a complete overview of the technology Thoroughly updated with new content to reflect the latest advances in the field while retaining the firm theoretical foundation of previous editions Presents a designer's point of view of the field, helping to equip both amateur enthusiasts and academically trained graduates with industry practice Covers all the newest developments in the field of high performance loudspeakers Offers a critical and objective approach to all subjects covered, rather than a simple spelling out of theory and facts Appeals to both amateur speaker builders as a source of ideas, and to professional speaker designers with an overview of competitive products and features Acknowledged industry-wide as the definitive work on speaker design and analysis, High Performance Loudspeakers, Seventh Edition is essential reading for audio engineers, speaker designers, equipment designers and students of acoustic engineering, electronics and electro-acoustics. It will also prove invaluable to students of electronics, broadcasting and recording techniques, but will also be of interest to authors and journalists in audio, and not least, amateur loudspeaker builders and enthusiasts.

Electroacoustic Devices Microphones and Loudspeakers

2.1 InTRoDUCTIon A loudspeaker is a device that converts electrical energy into acoustic energy (electroacoustic transducer), or more generally, a system consisting of one or more such devices. Loudspeakers are present in our daily ...

Author: Glen Ballou

Publisher: CRC Press

ISBN: 1136121188

Category: Technology & Engineering

Page: 328

View: 723

This is the definitive reference for microphones and loudspeakers, your one-stop reference covering in great detail all you could want and need to know about electroacoustics devises (microphones and loudspeakers). Covering both the technology and the practical set up and placement this guide explores and bridges the link between experience and the technology, giving you a better understanding of the tools to use and why, leading to greatly improved results.

Loudspeaker Handbook

Borwick , J. , Loudspeaker and Headphone Handbook , Focal Press , Boston ( 2001 ) . Collums , M. , High Performance Loudspeakers , John Wiley & Sons , New York ( 1991 ) . Dickason , V. , Loudspeaker Recipes , Book 1 , Audio Amateur ...

Author: John Eargle

Publisher: Springer Science & Business Media

ISBN: 9781402075841

Category: Music

Page: 417

View: 889

The second edition of Loudspeaker Handbook follows the same general outlines as the highly successful first edition and has been augmented and updated in many areas of technology. Most notable are the developments in large-scale, programmable line arrays, distributed mode loudspeakers, and ultrasonic-based audio transduction. Additionally, the core chapters on low frequency systems, system concepts, and horn systems have been expanded to include both more analytical material and a richer array of examples. Much of the success of the first edition has been due to its accessibility both to loudspeaker engineers and to lay technicians working in the field - a point of view the author maintains in the present work. A full understanding of the underlying technology requires a fairly rigorous engineering background through the second year of professional study. At the same time, the generous use of graphs, with their intuitive thrust, will be useful to all readers. Loudspeaker Handbook, Second Edition continues to be appropriate for use in courses at the undergraduate senior level, for graduate students, and for professionals in audio and acoustical engineering.


It will be seen from the curves that the average intensity due to loudspeaker C is at least 6 dB down on that of A. If we accept our earlier conclusions that loudspeaker A required peak input of 5 watts for normal domestic listening ...

Author: E. J. Jordan



Category: Loudspeakers

Page: 227

View: 517

Spatial Audio

debates about the directivity characteristics required of surround loudspeakers. There are also substantial differences between film sound mixing in large spaces and mixing for small rooms (e.g. music or television).

Author: Francis Rumsey

Publisher: Taylor & Francis

ISBN: 0240516230

Category: Music

Page: 240

View: 430

Explores the principles and practical considerations of spatial sound recording and reproduction. Particular emphasis is given to the increasing importance of multichannel surround sound and 3D audio, including binaural approaches, without ignoring conventional stereo. The enhancement of spatial quality is arguably the only remaining hurdle to be overcome in pursuit of high quality sound reproduction. The rise of increasingly sophisticated spatial sound systems presents an enormous challenge to audio engineers, many of whom are confused by the possibilities and unfamiliar with standards, formats, track allocations, monitoring configurations and recording techniques. The author provides a comprehensive study of the current state of the art in spatial audio, concentrating on the most widely used approaches and configurations. Anyone wishing to expand their understanding of these cutting-edge technologies will want to own this book. Keep up to date with the latest technology - 3D audio, surround sound and multichannel recording techniques Enables you to cut through the common confusions and problems associated with the subject Further your knowledge with this comprehensive study of the very latest spatial audio technologies and techniques

Sound System Engineering 4e

Loudspeaker Microphone Placed on line shared by both loudspeakers 1 ft or Resultant comb filter exposure (correct alignment of loudspeakers - microphone results in all NFIs being the same) 1 m NFI* NFI = c/d Let d =1 then: c = NFI *NFI ...

Author: Don Davis

Publisher: Taylor & Francis

ISBN: 1136111425

Category: Technology & Engineering

Page: 632

View: 384

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.

The Code of Federal Regulations of the United States of America

( c ) Loudspeakers , as designated by the Commandant , at lifeboat and embarkation stations shall be arranged for twoway conversation with the navigating bridge . ( d ) The emergency loudspeaker system shall be of a type approved by the ...




Category: Administrative law


View: 425

The Code of Federal Regulations is the codification of the general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government.

An Anthology of Articles on Spatial Sound Techniques Multichannel audio technologies

1) The number of walls and comers of many domestic listening rooms is four, so that this number of loudspeakers may often be convenient for horizontal-only reproduction. 2) The minimum number of loudspeakers in a horizontal plane array ...

Author: Durand R. Begault



Category: Acoustical engineering

Page: 509

View: 583