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NORD MODULAR G2 V1.4x 7. The Patch Mutator: Historical background
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HISTORICAL BACKGROUND
The Patch Mutator is based on evolutionary algorithms, a subdiscipline of the research field of Artificial
Life. In this field, natural processes are studied and simulated, based on the conviction that we can learn
from nature, both about how it works and how to perform other tasks more efficiently inspired by these
processes. This has led to a deeper understanding of the complex systems in nature, but also to new
algorithms for many computational tasks, such as optimization and searching.
Evolutionary algorithms were first proposed by computer science pioneer John Holland in the 1970s, in
a form he called the “genetic algorithm”. Inspired by Darwinian evolution, it applies random variation
and selection as an optimization technique. However, when working with aesthetic objects like images
and sounds, it is impossible to define any formalized selection criterion. Nobody can define what is a
beautiful sound!
In the middle of the 1980s, the British biologist and writer Richard Dawkins proposed a variation on the
genetic algorithm, where a human does the selection based on whatever his aesthetic preferences are, a
kind of interactive evolution. Others further elaborated upon this technique, for example computer
graphics wizard Karl Sims, who designed a system for interactively evolving stunning computer graphics
images. Since then, it has been used in numerous graphical applications, but not nearly as much in music,
maybe because it is much easier to browse and judge a bunch of images than a bunch of sounds or
compositions.
The G2 Patch Mutator is based on the work of Palle Dahlstedt, Swedish composer and researcher. His
research interest has primarily been in the application of evolutionary algorithms as creative tools, aiding
the search of novel musical expressions. This has resulted in a series of tools for evolving electronic
sounds and musical scores, and also in programs that compose music by themselves using evolutionary
techniques.
F
URTHER
READING
There are many books and articles published about evolutionary algorithms in different contexts. Below
are references to a few texts relevant for the Patch Mutator, and also some introducing the field in
general.
Richard Dawkins: The Blind Watchmaker. Longman Scientific and Technical, 1986.
The book that introduced the concept of interactive evolution.
Karl Sims: Artificial Evolution for Computer Graphics, 1991
Seminal paper on artistic use of interactive evolution by one of the pioneers, available online at: http://
www.genarts.com/karl/papers/siggraph91.html
Stephen Levy: Artificial Life – A report from the frontier where computers meet biology, 1992
A popular science book introducing the broad field of Artificial Life.
Shift-drag-drop Copy the source and destination sounds to Mother and Father and
create new Children by Interpolation.
Ctrl-drag-drop Copy the source and destination sounds to Mother and Father and
create new Children by Crossover.
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Productinformatie
| Merk | Nord |
| Model | Modular G2 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 60689 MB |
