Enjoying this Course?Table of Contents
- 15.1. Introduction
- 15.2. Acoustics of small environments
- 15.3. Resonance modes
- 15.4. Behaviour of axial modes
- 15.5. Considerations on resonance modes within an enclosed environment
- 15.6. Reverberation time of an environment
- 15.7. Absorption coefficient
- 15.8. Reflection coefficient
- 15.9. Sound absorption techniques
- 15.10. Passive acoustic panels
- 15.11. Active acoustic panels
- 15.12. Sound diffusion techniques
- 15.13. Criteria for designing a recording studio
- 15.14. LEDE control room
- 15.15. Measuring criteria for background noise
- 15.16. Acoustics of large environments
- 15.17. Acoustics of large environments: reverberation time
- 15.18. Acoustics of large environments: hall's absorption and reflection
- 15.18.1. Absorption
- 15.18.2. Absorption by the air
- 15.18.3. Undesired effects
In this chapter we shall illustrate the main acoustic characteristics of enclosed environments. There are many factors that contribute to the quality of the acoustics in an environment, and once again, knowledge and experience are essential tools when it comes to projecting an acoustic space. This is why we won't go into too much depth on the subject, because this course is aimed at future sound engineers rather than acoustics engineers (who have undergone an entirely different education in areas ranging from civil engineering to construction technology to the science of materials). However, that said, it is of utmost importance for a sound engineer to know the basic acoustics laws as well as the techniques that are most commonly used to obtain certain results. The most important factors that characterize the acoustics of an environment are: dimensions of the space, materials used, and its shape; the acoustic characteristics of an environment such as an auditorium are very different to those of a control room in a recording studio.
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