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Principles of Musical Acoustics
Principles of Musical Acoustics focuses on the basic principles in the science and technology of music. Musical examples and specific musical instruments demonstrate the principles. The book begins with a study of vibrations and waves, in that order. These topics constitute the basic physical properties of sound, one of two pillars supporting the science of musical acoustics. The second pillar is the human element, the physiological and psychological aspects of acoustical science. The perceptual topics include loudness, pitch, tone color, and localization of sound. With these two pillars in place, it is possible to go in a variety of directions. The book treats in turn, the topics of room acoustics, audio both analog and digital, broadcasting, and speech. It ends with chapters on the traditional musical instruments, organized by family. The mathematical level of this book assumes that the reader is familiar with elementary algebra. Trigonometric functions, logarithms and powers also appear in the book, but computational techniques are included as these concepts are introduced, and there is further technical help in appendices.
Signals, Sound, and Sensation
Designed to follow an introductory text on psychoacoustics, this book takes readers through the mathematics of signal processing from its beginnings in the Fourier transform to advanced topics in modulation, dispersion relations, minimum phase systems, sampled data, and nonlinear distortion. While organised like an introductory engineering text on signals, the examples and exercises come from research on the perception of sound. A unique feature of this book is its consistent application of the Fourier transform, which unifies topics as diverse as cochlear filtering and digital recording. More than 250 exercises are included, many of them devoted to practical research in perception, while others explore surprising auditory illusions generated by special signals. Periodic signals, aperiodic signals, and noise -- along with their linear and nonlinear transformations -- are covered in detail. More advanced mathematical topics are treated in the appendices. A working knowledge of elementary calculus is the only prerequisite. Indispensable for researchers and advanced students in the psychology of auditory perception.
Moons and Planets
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A Traveler's Guide to Mars
Utilizes a travel guide format to bring together recent scientific discoveries about Mars, describing such features as its dry riverbeds, huge volcano, possible ancient sea floor, and impact craters.
From Margin to Mainstream
This is a detailed and comprehensive account of women's participation in mainstream American politics at national, state, and local levels during the last 30 years. Hartmann traces their growing role in the political process and describes the issues around which they have mobilized--Equal Rights Amendment, the Equal Pay Act, Federal child care programs, and the appointment of women to high government posts. She notes how the black civil rights movement provided a new frame of reference for a women's movement, and discusses women's participation in the grassroots movements of the 1960s, in major women's organizations, such as the National Organization for Women and National Women's Political Caucus, and looks at women as political candidates and officeholders, and shapers of public policy. ISBN 0-394-35610-1: $29.95.
The Hidden History of the War on Voting
"Hartmann's history of voter suppression in America is necessary information given current news about voter registration purges and redistricting...a particularly timely topic for an election year, and anyone who is seriously concerned about the survival of American democracy will want to read this book and apply its lessons."—Booklist America's #1 progressive radio host looks at how elites have long tried to disenfranchise citizens—particularly people of color, women, and the poor—and shows what we can do to ensure everyone has a voice in this democracy. In today's America, only a slim majority of people register to vote, and a large percentage of registered voters don't bother to sho...
The Grand Tour
Presents a series of paintings, photographs, drawings, and text that take a guided trip through the solar system, featuring the latest in scientific thought and data.
Mars Underground
A search for a scientist who disappeared while exploring the Martian desert. He is Alwyn Stafford and as the search progresses it becomes clear he has discovered something which other people want kept hidden. A new alien civilization? A first novel by a Mars astronomer.
The History of Earth
Paintings enhance the text through a chronicle of our planet--its origin, its development, and its future.
Cycles of Fire
A stunningly illustrated guide to the stars with photographs, charts, and more than 100 paintings.
