The lowest and usually most intense frequency of a complex sound is its

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The fundamental frequency is the lowest and most intense frequency in a complex sound. It is the frequency at which the sound wave vibrates at its strongest and is usually the pitch that we perceive the sound as. The attack and decay phases refer to the initial and final stages of a sound's envelope, while overtones are higher frequencies that occur above the fundamental frequency. Characteristic frequency refers to the frequency at which a specific neuron or sensory receptor responds most strongly.

The Lowest and Usually Most Intense Frequency of a Complex