Chapter 3. Acoustic Environment
3.1. The Acoustic Environment
We are concerned about the effect the acoustic environment has on sound. We need to know the effect of a particular acoustic environment on the unaided talker or musician, on the sound system, if installed, and on unwanted sounds (noise) that may be present in the same environment.
An outdoor environment can often be a “free field.” “A sound field is said to be a free field if it is uniform, free from boundaries, and is undisturbed by other sources of sound. In practice, it is a field where the effects of the boundaries are negligible over the region of interest.” (From the GenRad instruction manual for their precision microphones.)
“Free from boundaries” is the catch phrase here. ...
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