Enjoying this Course?Table of Contents
- 1.1. Introduction
- 1.2. Sound: what is it?
- 1.3. Sound propagation through the air
- 1.4. Properties of sound
- 1.5. Combination of pure sinusoids
- 1.6. Time-Frequency representation
- 1.7. Harmonic content of a waveform
- 1.8. Basic waveforms
- 1.8.1. Pure sinusoid
- 1.8.2. Square wave
- 1.8.3. Sawtooth wave
- 1.8.4. Triangular wave
- 1.9. Sound envelope
- 1.10. Reflection, diffraction, refraction, absorption
- 1.10.1. Reflection
- 1.10.2. Reflections inside a room
- 1.10.3. Refraction
- 1.10.4. Diffraction
- 1.10.5. Absorption
This section introduces sound as a physical entity and illustrates its main characteristics. We shall also take a look at elementary sounds on which all complex sounds are based. Finally we shall describe the way sound behaves when it interacts with obstacles on its path.
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