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Echo Minimzation - Objective






Echo Degrades the Audio Clarity and Intelligibility.
Here are Four Ways to Minimize Echo in the Classroom.
  1. Use a "Flush Mount" Speaker.
  2. Use "Only One" Wide Dispersion Speaker.
  3. Reduce the Reverberation Time in the Classroom.
  4. Decrease the Amplified Sound Level or Volume.
    (The Higher the Volume the more perceptible is the Echo.)


Speaker "Mounting Surface" - Echo
bulletConventional Speakers, mounted away from the Wall or Ceiling,
emit sound directly plus reflected sound from the Mounting Surface.
(This Reflected Sound from the Mounting Surface degrades
the Audio Clarity.)
bulletFlush Mount Speakers are mounted Flush with the Wall or Ceiling and emit sound without any Mounting Surface Reflections - Echo.


"Multiple Speaker" - Echo
bullet"One" Speaker generates One Half the amount of Echo
than "Two" Speakers.
bullet"One" Speaker generates One Quarter the amount of Echo
than "Four" Speakers.


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Copyright 2001 & 2002 Alphanet Systems Inc.
Last modified: September 02, 2002