If the Volume on an Audio Device Is Increased from One

question 24

Essay

If the volume on an audio device is increased from one to two, how should the physical intensity of the sound be changed so that the perceived intensity is doubled? Explain with the help of Fechner's law.

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Definitions:

Probability Distribution

A statistical function that describes all the possible values and likelihoods that a random variable can take within a given range.

Expected Value

The long-run average value of repetitions of the experiment it represents, computed as the weighted average of all possible values.

Poisson Random Variable

Represents the number of events occurring in a fixed interval of time or space, assuming that these events happen with a known constant mean rate and independently of the time since the last event.

Random Variable

A variable whose possible values are numerical outcomes of a random phenomenon, used in probability and statistics to model randomness.