Computers and Technology, 19.05.2021 19:30 janeekajones08
Audio A: Technical -- inverse square law
Just like the inverse square law in lighting, the inverse square law in audio states that when the
distance between the microphone and sound source is increased, the sound level decreases by
the square of the ratio of that increase. Conversely, if the distance is decreased, the sound level
increases by the square of the ratio of that decrease. Here's a simple math problem. The distance
between a microphone and sound source is one (1) foot. The audio level reaching the microphone
is 40 decibels (dB). Now you move the microphone two (2) feet away, thereby doubling the
distance ratio; that is, increasing the distance by a factor of two. Remembering that this law has
the word "inverse" in it, and also the word "square," the audio level now reaching the microphone
would be how many dB? Note: You most write the correct number using digits for this to score
correctly; do not spell out the number.
Answers: 3
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Audio A: Technical -- inverse square law
Just like the inverse square law in lighting, the inverse...
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