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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 co...
The Cloud! It sounds fluffy and soft. Amorphous, remote, floating above the world. Run it in the Cloud, we say. A modern metaphor, but we once had another name, a more descriptive name for using someone elseÕs computer. We called it timesharing. Today we mix the idea of using distant computers and the idea of communicating via a network and call the combination The Cloud, imagining we have invented something new. But it isnÕt so new after all. Beginning in the 1960s, a company created a successful business making remote computer services available inexpensively to anyone via a network built for that purpose. In doing so, they created the first cloud. Companies offered online resources from banking to research, email to instant messaging, and the ability to run applications on powerful, remote computers and access them from anywhere. They called it Tymnet, and the company was Tymshare.
Pirates of Mars is an action-packed and often hilarious space adventure. The storytelling is fast paced and the art is gorgeous!
This volume contains the proceedings of the DIMACS/IEEE workshop on coding and quantization. The theme of the workshop was the application of discrete mathematics to reliable data transmission and source compression. These applications will become more significant in the coming years, with the advent of high capacity cellular networks, personal communications devices, and the ``wireless office''. The articles are written by experts from industry and from academia. Requiring only a background in basic undergraduate mathematics, this book appeals to mathematicians interested in multidimensional Euclidean geometry (especially lattice theory), as well as to engineers interested in bandwidth efficient communication or vector quantization.
A commonsense, self-contained introduction to the mathematics and physics of music; essential reading for musicians, music engineers, and anyone interested in the intersection of art and science. “Mathematics can be as effortless as humming a tune, if you know the tune,” writes Gareth Loy. In Musimathics, Loy teaches us the tune, providing a friendly and spirited tour of the mathematics of music—a commonsense, self-contained introduction for the nonspecialist reader. It is designed for musicians who find their art increasingly mediated by technology, and for anyone who is interested in the intersection of art and science. In Volume 1, Loy presents the materials of music (notes, intervals, and scales); the physical properties of music (frequency, amplitude, duration, and timbre); the perception of music and sound (how we hear); and music composition. Calling himself “a composer seduced into mathematics,” Loy provides answers to foundational questions about the mathematics of music accessibly yet rigorously. The examples given are all practical problems in music and audio. Additional material can be found at http://www.musimathics.com.
The application of digital signal processing (DSP) to problems in audio has been an area of growing importance since the pioneering DSP work of the 1960s and 70s. In the 1980s, DSP micro-chips became sufficiently powerful to handle the complex processing operations required for sound restoration in real-time, or close to real-time. This led to the first commer cially available restoration systems, with companies such as CEDAR Audio Ltd. in the UK and Sonic Solutions in the US selling dedicated systems world-wide to recording studios, broadcasting companies, media archives and film studios. Vast amounts of important audio material, ranging from historic recordings of the last century to relat...
A catalogue documenting two exhibitions and five years of new work, from 2007 to 2012, by American artist Mark Tansey, held at Gagosian Gallery, London, and Los Angeles. Mark Tansey constructs visual allegories about the nature and implications of perception, meaning, and interpretation in art. Manipulating the conventions and structures of figurative painting, he creates corollaries for sometimes arcane literary, philosophical, and historical concepts.
In The Music Machine, Curtis Roads brings together 53 classic articles published in Computer Music Journal between 1980 and 1985.
The study of Euclidean distance matrices (EDMs) fundamentally asks what can be known geometrically given onlydistance information between points in Euclidean space. Each point may represent simply locationor, abstractly, any entity expressible as a vector in finite-dimensional Euclidean space.The answer to the question posed is that very much can be known about the points;the mathematics of this combined study of geometry and optimization is rich and deep.Throughout we cite beacons of historical accomplishment.The application of EDMs has already proven invaluable in discerning biological molecular conformation.The emerging practice of localization in wireless sensor networks, the global posi...
The methodology and developmental history of incremental compilation is discussed. The implementation of incremental compilation in the PECAN programming environment generator is discussed in detail. The PECAN environment generated for Pascal has been modified to support procedure-by-procedure compilation, and complete (traditional) compilation. The time efficiency of these compilation methods is compared with that of incremental compilation.