Application of DSP Methods to Sound Reproduction
Author : David Peter Round
Publisher :
Page : pages
File Size : 31,90 MB
Release : 1996
Category :
ISBN :
Accurate Sound Reproduction Using DSP
Author : Mitch Barnett
Publisher :
Page : 204 pages
File Size : 25,41 MB
Release : 2017-04-02
Category :
ISBN : 9781520977904
Book Description
This eBook provides the audio enthusiast with an easy-to-follow step-by-step guide for designing a custom digital filter that corrects the frequency and timing response of your loudspeakers in your listening environment so that the music arriving at your ears matches as closely as possible to the content on the recording.Industry guidelines, spanning over 40 years of evolution, are referenced throughout the eBook, providing the recommended target responses for accurate sound reproduction. Correcting the measured response to known target responses is, in effect, matching the acoustic output signal arriving at your ears to the digital audio stored in a media file. The target responses can also be tailored to your own preferences.The chapter on the acoustics and psychoacoustics of room correction explains why we hear what we hear in small-room acoustics and what our ears care about most when it comes to accurate sound reproduction. There are individual chapters on industry target responses for frequency and step response, group delay, energy time curve, reverb time, polar response and interaural coherence coefficient (i.e., imaging).Advanced sections of the eBook show you how to design and implement digital crossovers, driver linearization, and driver time alignment; how to compensate for brickwall antialiasing filters; and how to use the Beamforming quasi-anechoic measurement technique. All of these sections are designed to incrementally improve your sound reproduction system's accuracy. The last section of the eBook shows you how to perform loopback measurements to verify the design and operation of your digital correction filter, not only at the listening position, but across a wide listening area as well.Whether your sound reproduction system is a computer desktop speaker system, stereo audiophile system, home theater multi-channel system, mains and sub-woofer system, DIY audio system, or car sound system, the results are audible, measurable, and repeatable.To benefit the most from this step-by-step guide, you will require a computer, a calibrated measurement microphone, an Analog to Digital (ADC)/Digital to Analog (DAC) converter, and two commercial software packages: Acourate DSP Audio Toolbox and JRiver Media Center. This eBook contains several color-coded images, so viewing on a color screen is required.With over 260 color screen captures of the software in action, plus 200 links to industry reference material and knowledge, this eBook is the definitive guide to Accurate Sound Reproduction Using Digital Signal Processing (DSP).
Applications of Digital Signal Processing to Audio and Acoustics
Author : Mark Kahrs
Publisher : Springer Science & Business Media
Page : 569 pages
File Size : 33,58 MB
Release : 2005-12-11
Category : Technology & Engineering
ISBN : 030647042X
Book Description
Karlheinz Brandenburg and Mark Kahrs With the advent of multimedia, digital signal processing (DSP) of sound has emerged from the shadow of bandwidth limited speech processing. Today, the main appli cations of audio DSP are high quality audio coding and the digital generation and manipulation of music signals. They share common research topics including percep tual measurement techniques and analysis/synthesis methods. Smaller but nonetheless very important topics are hearing aids using signal processing technology and hardware architectures for digital signal processing of audio. In all these areas the last decade has seen a significant amount of application oriented research. The topics covered here coincide with the topics covered in the biannual work shop on “Applications of Signal Processing to Audio and Acoustics”. This event is sponsored by the IEEE Signal Processing Society (Technical Committee on Audio and Electroacoustics) and takes place at Mohonk Mountain House in New Paltz, New York. A short overview of each chapter will illustrate the wide variety of technical material presented in the chapters of this book. John Beerends: Perceptual Measurement Techniques. The advent of perceptual measurement techniques is a byproduct of the advent of digital coding for both speech and high quality audio signals. Traditional measurement schemes are bad estimates for the subjective quality after digital coding/decoding. Listening tests are subject to sta tistical uncertainties and the basic question of repeatability in a different environment.
Think DSP
Author : Allen B. Downey
Publisher : "O'Reilly Media, Inc."
Page : 172 pages
File Size : 47,39 MB
Release : 2016-07-12
Category : Technology & Engineering
ISBN : 149193851X
Book Description
If you understand basic mathematics and know how to program with Python, you’re ready to dive into signal processing. While most resources start with theory to teach this complex subject, this practical book introduces techniques by showing you how they’re applied in the real world. In the first chapter alone, you’ll be able to decompose a sound into its harmonics, modify the harmonics, and generate new sounds. Author Allen Downey explains techniques such as spectral decomposition, filtering, convolution, and the Fast Fourier Transform. This book also provides exercises and code examples to help you understand the material. You’ll explore: Periodic signals and their spectrums Harmonic structure of simple waveforms Chirps and other sounds whose spectrum changes over time Noise signals and natural sources of noise The autocorrelation function for estimating pitch The discrete cosine transform (DCT) for compression The Fast Fourier Transform for spectral analysis Relating operations in time to filters in the frequency domain Linear time-invariant (LTI) system theory Amplitude modulation (AM) used in radio Other books in this series include Think Stats and Think Bayes, also by Allen Downey.
Fundamentals of Digital Audio, New Edition
Author : Alan P. Kefauver
Publisher : A-R Editions, Inc.
Page : 206 pages
File Size : 18,64 MB
Release : 2007-01-01
Category : Music
ISBN : 0895796112
Book Description
In Fundamentals of Digital Audio, Alan P.Kafauver and David Patschke present a systematic overview of the elements for digital recording and reproducing sound. With Ideas grounded in the principles of acoustics, the authors exptore the essential issues involved in preserving, transferring, and modifying sound recordings in the digital domain. In addition to references on historic methods of sound reproduction, this book includes detailed information about the latest digital audio technology. Of special interest is the coverage of storage media and compression technologies. The authors detail a comprehensive introduction and evolution of data storage and media standards, including CD/DVD/Blu-ray/HD DVD, as well as fully (but plainly) detailing associated digital audio compression algorithms. They catalog in detail the processes involved in digitally editing recorded sound, presenting a step-by-step editing and mastering session. Fundamentals of Digital Audio is an essential textbook for anyone who wants to better understand or work with recorded sound using today's digital equipment. The book contains many diagrams and illustrations through which the authors share their expertise with the reader, Among the few books that treats this subject both comprehensively and understandably, the new edition of Fundamentals of Digital Audio should continue to be an indispensable text in this area.
Digital Signal Processing in Audio and Acoustical Engineering
Author : Francis F. Li
Publisher : CRC Press
Page : 228 pages
File Size : 39,98 MB
Release : 2019-04-02
Category : Technology & Engineering
ISBN : 146659389X
Book Description
Starting with essential maths, fundamentals of signals and systems, and classical concepts of DSP, this book presents, from an application-oriented perspective, modern concepts and methods of DSP including machine learning for audio acoustics and engineering. Content highlights include but are not limited to room acoustic parameter measurements, filter design, codecs, machine learning for audio pattern recognition and machine audition, spatial audio, array technologies and hearing aids. Some research outcomes are fed into book as worked examples. As a research informed text, the book attempts to present DSP and machine learning from a new and more relevant angle to acousticians and audio engineers. Some MATLAB® codes or frameworks of algorithms are given as downloads available on the CRC Press website. Suggested exploration and mini project ideas are given for "proof of concept" type of exercises and directions for further study and investigation. The book is intended for researchers, professionals, and senior year students in the field of audio acoustics.
Audio Bandwidth Extension
Author : Erik Larsen
Publisher : John Wiley & Sons
Page : 312 pages
File Size : 48,53 MB
Release : 2005-04-08
Category : Technology & Engineering
ISBN : 0470858656
Book Description
Bandwidth extension (BWE) refers to various methods that increase either the perceived or real frequency spectrum (bandwidth) of audio signals. Such frequency extension is desirable if at some point the frequency content of the audio signal has been reduced, as can happen for example during recording, transmission or reproduction. This volume, significant in dealing exclusively with BWE, discusses applications to music and speech and places particular emphasis on signal processing techniques. Presents an all-encompassing approach to BWE by covering theory, applications and algorithms Reviews important concepts in psychoacoustics, signal processing and loudspeaker theory Develops the theory and implementation of BWE applied to low-frequency sound reproduction, perceptually coded audio, speech and noise abatement Includes a BWE patent overview Audio Bandwidth Extension pulls together recent developments in to a single volume and presents a coherent framework to the reader. Such an approach will have instant appeal to engineers, specialists, researchers and postgraduate students in the fields of audio, signal processing and speech.
Real-time Digital Signal Processing
Author : Sen-Maw Kuo
Publisher : 清华大学出版社有限公司
Page : 524 pages
File Size : 22,59 MB
Release : 2003
Category : Signal processing
ISBN : 9787302077008
Book Description
Audio Signal Processing and Coding
Author : Andreas Spanias
Publisher : John Wiley & Sons
Page : 544 pages
File Size : 32,10 MB
Release : 2006-09-11
Category : Technology & Engineering
ISBN : 047004196X
Book Description
An in-depth treatment of algorithms and standards for perceptual coding of high-fidelity audio, this self-contained reference surveys and addresses all aspects of the field. Coverage includes signal processing and perceptual (psychoacoustic) fundamentals, details on relevant research and signal models, details on standardization and applications, and details on performance measures and perceptual measurement systems. It includes a comprehensive bibliography with over 600 references, computer exercises, and MATLAB-based projects for use in EE multimedia, computer science, and DSP courses. An ftp site containing supplementary material such as wave files, MATLAB programs and workspaces for the students to solve some of the numerical problems and computer exercises in the book can be found at ftp://ftp.wiley.com/public/sci_tech_med/audio_signal
Sound Reproduction
Author : Floyd E. Toole
Publisher : Routledge
Page : 956 pages
File Size : 43,89 MB
Release : 2017-07-28
Category : Technology & Engineering
ISBN : 1317415094
Book Description
Sound Reproduction: The Acoustics and Psychoacoustics of Loudspeakers and Rooms, Third Edition explains the physical and perceptual processes that are involved in sound reproduction and demonstrates how to use the processes to create high-quality listening experiences in stereo and multichannel formats. Understanding the principles of sound production is necessary to achieve the goals of sound reproduction in spaces ranging from recording control rooms and home listening rooms to large cinemas. This revision brings new science-based perspectives on the performance of loudspeakers, room acoustics, measurements and equalization, all of which need to be appropriately used to ensure the accurate delivery of music and movie sound tracks from creators to listeners. The robust website (www.routledge.com/cw/toole) is the perfect companion to this necessary resource.
