Author: Igor S. Popovich Publisher: Career Professionals ISBN: 9780980622393 Category : Technology & Engineering Languages : en Pages : 172
Book Description
Learn how to measure various parameters of hi-fi and guitar amplifiers & preamps: gain, input sensitivity, output power, harmonic and IM distortion, S/N ratio, crosstalk, input & output impedance, damping factor, frequency range, internal AC & DC voltages and waveforms, phono stage equalization accuracy and much more.
Author: Eddy Brixen Publisher: CRC Press ISBN: 1317438736 Category : Technology & Engineering Languages : en Pages : 418
Book Description
In this comprehensive guide, Brixen takes the reader through the complex and confusing aspects of audio metering, imparting the knowledge and skills needed to utilize optional signal levels and produce high-quality audio. Covering all aspects of this fundamental subject, Audio Metering: Measurements, Standards and Practice begins with the basics, such as audio definitions and digital techniques, and works up to more complex topics like hearing and psychoacoustics. This revised and expanded third edition includes: Updated information on loudness metering, covering both existing and new standards. Definitions of terms such as LKFS, LUFS, gating, LRA. Explanations of signal types and musical sounds and structures. Further details on immersive audio. Skills needed for both small-room acoustics and large auditorium sound design without loss of sound quality. Descriptions of measurement signals and systems for audio and acoustic sound. A chapter on listening tests from small set-ups to large-scale comparisons of PA/SR-systems. Packed full of valuable information with a wide range of practical applications, this is the essential reference guide to audio metering for technicians, engineers, and tonmeisters, as well as sound designers working with acoustics, electroacoustics, broadcast, studio recording, sound art, archiving, audio forensics, and theatrical and live-audio setups.
Author: Glen Ballou Publisher: Taylor & Francis ISBN: 1136121099 Category : Technology & Engineering Languages : en Pages : 188
Book Description
This book offers a quick guide and complete reference to the fundamentals of test and measurement for all aspects of sound engineering. Including electrical and acoustic testing, measurement systems, levels, methods, protecting the ear, units of measurement and standards, this guide comes with and multiple tables to ensure quick easy access to information and illustrate points this is a must have reference for all audio engineers.
Author: National Research Council Publisher: National Academies Press ISBN: 0309092965 Category : Social Science Languages : en Pages : 321
Book Description
Millions of Americans experience some degree of hearing loss. The Social Security Administration (SSA) operates programs that provide cash disability benefits to people with permanent impairments like hearing loss, if they can show that their impairments meet stringent SSA criteria and their earnings are below an SSA threshold. The National Research Council convened an expert committee at the request of the SSA to study the issues related to disability determination for people with hearing loss. This volume is the product of that study. Hearing Loss: Determining Eligibility for Social Security Benefits reviews current knowledge about hearing loss and its measurement and treatment, and provides an evaluation of the strengths and weaknesses of the current processes and criteria. It recommends changes to strengthen the disability determination process and ensure its reliability and fairness. The book addresses criteria for selection of pure tone and speech tests, guidelines for test administration, testing of hearing in noise, special issues related to testing children, and the difficulty of predicting work capacity from clinical hearing test results. It should be useful to audiologists, otolaryngologists, disability advocates, and others who are concerned with people who have hearing loss.
Author: Ethan Winer Publisher: CRC Press ISBN: 1136126147 Category : Technology & Engineering Languages : en Pages : 672
Book Description
The Audio Expert is a comprehensive reference that covers all aspects of audio, with many practical, as well as theoretical, explanations. Providing in-depth descriptions of how audio really works, using common sense plain-English explanations and mechanical analogies with minimal math, the book is written for people who want to understand audio at the deepest, most technical level, without needing an engineering degree. It's presented in an easy-to-read, conversational tone, and includes more than 400 figures and photos augmenting the text. The Audio Expert takes the intermediate to advanced recording engineer or audiophile and makes you an expert. The book goes far beyond merely explaining how audio "works." It brings together the concepts of audio, aural perception, musical instrument physics, acoustics, and basic electronics, showing how they're intimately related. Describing in great detail many of the practices and techniques used by recording and mixing engineers, the topics include video production and computers. Rather than merely showing how to use audio devices such as equalizers and compressors, Ethan Winer explains how they work internally, and how they are spec'd and tested. Most explanations are platform-agnostic, applying equally to Windows and Mac operating systems, and to most software and hardware. TheAudioExpertbook.com, the companion website, has audio and video examples to better present complex topics such as vibration and resonance. There are also videos demonstrating editing techniques and audio processing, as well as interviews with skilled musicians demonstrating their instruments and playing techniques.
Author: John L Murphy Publisher: ISBN: 9780966377347 Category : Languages : en Pages : 208
Book Description
Introduction to Loudspeaker Design is written for students, technicians, engineers and hobbyists seeking an overview of the technology of loudspeakers. Starting with a brief history of audio developments the book begins by introducing the concepts of frequency, pitch and loudness and proceeds to develop the idea of a loudspeaker as a system. The book covers such topics as loudspeaker design tradeoffs, spatial loading, diffraction loss, cavity effect and enclosure construction. A complete chapter is devoted to the subject of crossover design including design equations. The second edition adds a new chapter on simulation and analysis which includes design equations for closed and vented type speakers. The appendices contain technical references, design aids, glossaries and a chart depicting 18 different loudspeaker enclosure types. The author is a physicist/audio design engineer with over 35 years experience in the research and development of audio products spanning both hardware and software. His WinSpeakerz, TrueRTA and DATS software applications are widely used throughout the audio industry as tools for simulating and measuring loudspeaker performance. Captain Murphy served as a space systems analyst for NORAD during his military career. Changes for the Second Edition: The second edition brings new material and polishes the first edition with many new or improved illustrations. Chapter 2 was expanded with the second half split into a new Chapter 3 titled "Speaker Response Functions." The discussion of Thiele-Small parameters has been expanded and now covers small-signal parameters vs. large-signal parameters as it explores the role of the test signal level in parameter measurement. The crossover design chapter has been expanded to include formulas for calculating component values for the most popular crossover types. Equations have been added for calculating impedance compensation and attenuation networks. The old Chapter 7 FAQ material was integrated into other chapters as appropriate. A new Chapter 8 titled "Loudspeaker Simulation" has been added and introduces loudspeaker equivalent circuit analysis with equations for calculating the magnitude and phase responses of closed and vented loudspeaker systems. Additional design equations are introduced and then examples are given for calculating the responses of a closed box and a vented box loudspeaker. Detailed design equation summaries are given for closed and vented boxes. Appendix C was added to provide a glossary of symbols and a glossary of terms. The box type charts were moved to Appendix D.
Author: Igor S. Popovich
Author: Eddy Brixen
Author: Glen Ballou
Author: National Research Council
Author: Dr. Xavier Maria Raj
Author: Ethan Winer
Author: James Jerger
Author: Joseph D'Appolito
Author: John L Murphy
Author: United States. Congress. Senate. Committee on Governmental Affairs