Equivalent Acoustic Distance (EAD) and A-Weighted Noise Level

  • John M. Eargle


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).


Noise Level Reinforcement System Signal Transmission General Observation Normal Listener 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. Eargle (1989)Google Scholar

Copyright information

© Springer Science+Business Media New York 1994

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  • John M. Eargle

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