CHAPTER 3
Sound in Rooms—Matters of Perspective
3.1 LIVE MUSICAL PERFORMANCES
The science of room acoustics developed in large performance spaces: concert halls. The sound sources, voices and musical instruments, were considered as a group to be approximately omnidirectional. Sounds from these sources radiate in all directions, being reflected by a few carefully positioned early reflecting surfaces, and then later by many somewhat randomly positioned reflecting, diffracting and scattering surfaces and objects, to create a uniformly mixed reflected sound field that makes its way to all parts of the audience.
All acoustical measurements done in these spaces begin with a sound source—a starter's pistol, explosive device, or a special loudspeaker—all ...
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