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Homework Help: Amplitude and Perceived Loudness

  1. Jan 27, 2010 #1

    If amplitude is doubled, is perceived loudness necessary doubled?

    If I recall correctly, we hear things on a logarithmic scale.
  2. jcsd
  3. Jan 28, 2010 #2


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    Science Advisor

    You are correct. While loudness doubles, the human ear interprets different frequencies differently. This is why there have been different weighing functions, i.e. dBA, dBC etc...
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