Rhythm and Transforms

ISBN-13: 9781447160496 / Angielski / Miękka / 2014 / 336 str.

William Arthur Sethares

Opis

People quite naturally identify the rhythmic structure of music as they tap their feet and sway in time with the beat. Underlying such mundane motions is an act of cognition that is not easily reproduced in a computer program or automated by machine. Rhythm and Transforms asks (and answers) the question: How can we build a device that can "tap its foot" along with the music? The result is a tool for detecting and measuring the temporal aspects of a musical performance: the periodicities, the regularities (and irregularities), the beat, the rhythm. The impact of such a "rhythm meter" on music theory and on the design of sound processing electronics such as musical synthesizers, drum machines, and special effects devices is described. The "rhythm meter" provides a concrete basis for a discussion of the relationship between the cognitive processing of temporal information and the mathematical techniques used to describe and understand regularities in data.Rhythm and Transforms will be of interest to engineers and others interested in the design of audio devices such as musical synthesizers, special effects devices, drum machines, and electronic keyboards. It will be useful to musicians and composers who exploit computer-based tools in the creation and the recording process. It will be of use to arrangers, musicologists, and others interested in musical analysis. Rhythm and Transforms provides a unique approach to working with environmental sounds, and there are clear applications to the synchronization of audio with video (i.e., film scoring). Finally, the target audience also includes those interested in the way the ear works, and how this influences the types of sound patterns we like to listen to.

Recenzje

From the reviews:

"Rhythm and Transforms, is a fitting sequel. ... There is no doubt that Sethares is a good writer ... . His extensive glossary will be a great help to those who are encountering some of the ideas for the first time ... . Overall, Rhythm and Transforms is a worthwhile addition to the literature. I'm sure it will find a place ... in many personal libraries, as it will in mine." (Thomas D. Rossing, Physics Today, August, 2008)

"This book is about understand the link between the physical stimuli and the subsequent cognitive responses, with the goal of developing algorithms to assist with various applications ... . this book contains good material to motivate the interests of students about the 'importance of mathematics in applications.' ... Your brain will enjoy the entrainment such synchronization performs between electrical impulses and the words in this book." (Robert S. Anderssen, SIAM Review, Vol. 50 (3), 2008)

"This book explores the temporal and rhythmic relationships between sounds and the structure of music, between perceptual aspects of the human auditory system and the sound machines ... . This book is useful for engineers and musicians interested in the design of audio devices." (Manfred Tasche, Zentralblatt MATH, Vol. 1189, 2010)

Spis treści

What is Rhythm? Visualizing and Conceptualizing Rhythm Variety of Rhythmic Experience Auditory Perception Transforms Adaptive Oscillators Statistical Models Automated Rhythm Analysis Beat-based Signal Processing Musical Composition and Recomposition Musical Analysis via Feature Scores Speculations, Interpretations, Conclusions

O autorze

William Sethares is a professor at the University of Wisconsin-Madison, where he teaches about electro-acoustics and signal processing. A focus of his research is the relationship between the rhythmic qualities of music – how they are perceived biologically and the qualities of the instruments or machine making the sounds.