文件名称:
Crafting Digital Media
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上传时间: 2010-03-06
详细说明： Fifty years ago, I decided to try to play a musical instrument. After a brief attempt at the trumpet, my parents and I settled on the clarinet, mostly (I think) because my parents realized that I couldn’t play the clarinet and sing at the same time, and this was important to peace and harmony in the Hall household. Fifty years ago, if a young person wanted to record and distribute their music, it was almost impossible. Although tape recorders existed, they were expensive. The average person couldn’t afford even the simplest of tape recorders, much less very expensive mixing equipment. Editing of tape was often done with scissors, and to press a record was in the young artist’s dreams. Forty years ago (in 1969), I started working with computers. As a young college student, I couldn’t afford the high prices of commercial computer software, so I joined an organization of computer users who wrote software and freely licensed it to anyone who wanted to use it. These people weren’t necessarily paid to write programs. They included mathematicians, scientists, business people, and (yes) musicians. For the most part, they wrote the software because they needed it for their own purposes, and they hoped other people would enjoy it or (perhaps) help them make it better. Fast-forward to this century. Modern-day computer equipment can turn a decent set of microphones and audio/video equipment into a sound or video studio at little incremental cost over the computer system itself. Fairly good software is available for relatively little money–or even at no cost, pulled down from the Internet. However, while the software that is available is often free of cost, is it truly free? Can the musician who needs a slight change to the software affect the closed-source software they use? Can the computer science student interested in audio/video techniques see the source code to real audio/video software used by real musicians, and therefore learn how to improve that software? Although the scope of the book is limited to showing you some of the software that is available and how to use it to complete audio and video projects, it really illustrates two freedoms: the freedom to produce your own type of music and the freedom of a system that allows (and encourages) you to change that software. In addition, we hope that musicians and video people who like computers, and computer programmers who like music and video, will help to make these programs even better than they are today. Most of all, we hope you enjoy this book as an introduction to the wonderful world of Free and Open Source Software. ...展开收缩
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