Church Acoustics & Sound Systems

With better sound, you can reach more people for Christ, one church at a time.

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Acoustical Quiz

Posted by jdbsound on April 9, 2020


  1.  What is the difference between sound absorption and phase cancellation?
  2. How many decibels is equal to a coefficient value of 1 in decibels?
  3. How much does sound decay when you double the distance outdoors in decibels?
  4. How much does sound decay over distance when indoors in decibels?
  5. When you double the number of loudspeakers of the same power, how much does the sound increase in decibels?
  6. When you have two loudspeaker side by side and wire one speaker out of phase from the other, how much is the sound reduction in decibels?

When you know the answers, write them in the comment box below.

In the meantime – – – enjoy.

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