Titlebook: Computer Music Instruments II; Realtime and Object- Victor Lazzarini Textbook 2019 Springer Nature Switzerland AG 2019 Computer Music.Elect

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File Input and OutputThis chapter expands our means of input and output by introducing file operations defined by the standard C library. We first look at formatted text output and then explore the principles of generic binary file access. The chapter concludes with an application example of file IO that is supported by the sound and music computing system Csound.

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SoundfilesThe specific case of soundfile IO is discussed in detail in this chapter. Some principles of digital audio are outlined: sampling, digital-to-analogue and analogue-to-digital conversion, data precision, channels, and basic operations. To complement this discussion, a widely used library for soundfile IO, libsndfile, is introduced.

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Realtime AudioThis chapter discusses the fundamental aspects of realtime audio programming and access to sound devices. Two widely-used APIs are introduced and contrasted: Portaudio and the Jack connection kit. Programming examples are offered for each, demonstrating realtime processing in C.

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Realtime MIDIThe MIDI protocol is presented in this chapter as one of the typical ways in which realtime audio instruments can be controlled. The native MacOS API CoreMIDI is introduced as a system-dependent means of accessing MIDI devices. This is complemented by a discussion of cross-platform support for realtime MIDI, which is provided by Portmidi or Jack.

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Introduction to the Programming Environmentg systems, and their main components: file system, terminal, and commands. The C/C++ toolchain is introduced as the fundamental collection of software that will support all the work in this book. Finally, we take a first look at the C language and its basic elements.

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