The Study On The Acoustic Sound & The Application Of Audio Signal Processing In Electro-acoustic Music

Electroacoustic music has experienced a five-to-six-decades development since its beginning. Compared with long history of music, this is only a rather short period; however, it has succeeded in establishing its own language, aesthetics and system. From the making of acoustic source to texture of structure, and from method of notation to concept of composition, electroacoustic music comes entirely from the electronic devices. This is a monstrous shift from traditional composition, which not only embodied composer's burning desire for innovation but also the great advancement of science and technology. Recently, composers have produced a large amount works in this regard with novel skill and idea which has accelerated the development of electronic music and further engender its branching.In China, electro-acoustic music sprouted in 1980s when computer music is in the process of displacing cassette music. China's electronic music started 20 years later than some other country in the world; however, china has been in line with international practice due to the ever increasing number of research institutes, ever flourishing of teaching and composing as well as ever strengthening of academic exchange. As a result, domestic research both in forms of words and composition is urgently needed.Because of the lack of related sources in China, I rely mainly on my own experience of learning and practicing, which provided me with following problems to discuss:what is the peculiarity of acoustic source? What can influence its peculiarity? How to generate structure between various sounds? What is its character? Through what method could a composer conceive the design of sound? And so on. It is my hope that some basic laws in making electronic music can be revealed through the integration of sound comparison and composing practice.My dissertation is divided into five chapters. Chapter one:collation of the theory in electronic music field with summarization as main method; chapter two and three:demonstration of sound resource and organizing feature in electronic music teaching with case analysis and summary of its character; chapter four:discussion of its space problem; and chapter five:the thinking of practicing and method in audio technology.