Equivalent Acoustic Distance (EAD) and A-Weighted Noise Level
In Figure 124A, Do represents the distance between listener and talker. Through the use of a speech reinforcement system, that distance can be effectively shortened by raising the level of the talker as perceived by the listener. This has been referred to as “Equivalent Acoustic Distance” or “Expected Acoustic Distance” (EAD).
- Eargle (1989)Google Scholar