Digital Sound Processing

9.1 The need for computer programming
• Software Engineering - the art of designing, planning & testing computer programs.
9.2 Types of programming language
• Types of language and the Computer Languages List.
• Assembler Programming (links) or an overview.
• Procedural Programming.
• C (see below - section 9.3).
• Pascal.
• BASIC.
• FORTRAN.
• COBOL.
• Object-Oriented Programming. What is OOP?
• Java.
• C++.
• Smalltalk.
• Logic Programming.
• Prolog.
• Lisp.
9.3 Structured Programming for music
•  Data structures and algorithms.
• C programming
• On-line programming tutorials.
9.4 Programming at Control Rate
• MIDI - for a full description, see Chapter 4.
• MIDI Programming Libraries. (select the 'Programming' option in the menu).

Here you can download code for your C compiler, to enable you to talk to your MIDI devices.
• Software Development tools for MIDI.
9.5 Data Generation and Output
 

MIDI File examples	Description
Figure 9.6	Single note
Figure 9.7	C major chord
Figure 9.8	Simple repetitive bass line
Figure 9.9	Chromatic scale of 128 notes
Figure 9.11	7-note scale of C major
Figure 9.12	64 random notes from blues scale
Extension of Figure 9.12	Notes and bass with random velocities

• The natural origin of musical scales.
•  Different types of musical scale.  A tutorial on modes.
• Try out someone else's Random Music Generator.
• History of algorithmic composition.
• Tutorials on algorithmic music (1), (2).
• Some commercial auto-accompaniment generators.
9.6 Data Input and Transformation
 

MIDI File examples	Description
Figure 9.13(a)	A short musical phrase
Figure 9.13(b)	The above phrase played through the program - i.e. adds a 5th.

• Downloadable utilities for MIDI sequencing and processing.
• Free compilers and interpreters.

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