Bøger af David Worrall

This book is an inquiry into whether what Blake called his 'visions' can be attributed to recognizable perceptual phenomena. The conditions identified include visual hallucinations (some derived from migraine aura), and auditory and visual hallucinations derived from several types of synaesthesia. Over a long period of time, Blake has been celebrated as a 'visionary, ' yet his 'visions' have not been discussed. Worrall draws on an understanding of neuroscience to examine both Blake's visual art and writings, and discusses the lack of evidence pointing towards psychosis or pathological ill-health, thus questioning the rumours pertaining to Blake's insanity.

England was a spy culture in the years 1790 through 1820. Restriction, regulation and surveillance formed the dominant discursive context. Ultra-radical artisans developed a discourse based on the revolutionary ideology of Thomas Spence which proposed the corporate ownership of land and the overthrow of the Government by physical force. The Spenceans were considered the most radical of the political groups active during this period, with William Blake, Jeremy Bentham, and Percy Shelley the best known of those spied upon for suspected Speancean activities.This book outlines the battle between repressive seditious laws and the radicals whose weapon was the written and spoken word. David Worrall explores the discursive context of the campaigns against sedition in the 1790s, Colonel Despard's intended coup of 1802, the Spa Fields rising of 1816, the planned Bartholomew Fair insurrection of 1817 and the debacle of the 1820 Cato Street conspiracy. He recovers a lost artisan culture recorded by spies, moles and informers who infiltrated the organizations, debating clubs and taverns where radical speakers called for violent revolution, examining for the first time the speeches, conversations, songs, poems, pamphlets, letters, handbills, trials, interrogations, and arrests which constituted the resistance to the Government's regulation of discourse.Radical Culture features a sympathetic portrait of these revolutionaries gleaned almost entirely from the records of the government spies who helped put them in jail. Worrall brings to life the ultra-radicals, dramatizing what they said, how they reacted under extreme conditions of arrest or impending execution, and how the Government hounded them in their last hours of life.

The contemporary design practice known as data sonification allows us to experience information in data by listening. In doing so, we understand the source of the data in ways that support, and in some cases surpass, our ability to do so visually. In order to assist us in negotiating our environments, our senses have evolved differently. Our hearing affords us unparalleled temporal and locational precision. Biological survival has determined that the ears lead the eyes. For all moving creatures, in situations where sight is obscured, spatial auditory clarity plays a vital survival role in determining both from where the predator is approaching or to where the prey has escaped. So, when designing methods that enable listeners to extract information from data, both with and without visual support, different approaches are necessary. A scholarly yet approachable work by one of the recognized leaders in the field of auditory design, this book will - Lead you through some salient historical examples of how non-speech sounds have been used to inform and control people since ancient times. - Comprehensively summarize the contemporary practice of Data Sonification.- Provide a detailed overview of what information is and how our auditory perceptions can be used to enhance our knowledge of the source of data.- Show the importance of the dynamic relationships between hearing, cognitive load, comprehension, embodied knowledge and perceptual truth.- Discuss the role of aesthetics in the dynamic interplay between listenability and clarity.- Provide a mature software framework that supports the practice of data sonification design, together with a detailed discussion of some of the design principles used in various examples. David Worrall is an internationally recognized composer, sound artist and interdisciplinary researcher in the field of auditory design. He is Professor of Audio Arts and Acoustics at Columbia College Chicago and a former elected president of the International Community for Auditory Display (ICAD), the leading organization in the field since its inception over 25 years ago.Code and audio examples for this book are available athttps://github.com/david-worrall/springer/ Here is an excellent review of the book by Dr Gregory Kramer: "Worrall proceeds bravely through the trees and vines of philosophy, information theory, aesthetics, and other contributors to sonification design theory. It's a feat. He nails all of this down with the specific implementation system he's designed over many years, and applies his theories to specific problems. In a field of research still in its first half century and setting its bearings in a world where human perception has become a sideshow to machine learning, deep learning, and artificial intelligence, the roots David provides will serve well." Dr Gregory Kramer is the founding figure in the emerging field of sonification, founded the International Conference on Auditory Display (ICAD) and editor of the first book in the field, "Auditory Display: Sonification, Audification and Auditory Interfaces" (Addison Wesley, 1994).