Read the Amplitude (volume level) of an AudioIn. The AudioIn class contains its own instance of the Amplitude class to help make it easy to get a microphone's volume level. Accepts an optional smoothing value (0.0 < 1.0). NOTE: AudioIn must .start() before using .getLevel().
Syntax
getLevel([smoothing])Parameters
smoothing
Number:
Smoothing is 0.0 by default. Smooths values based on previous values.
Returns
Number: Volume level (between 0.0 and 1.0)
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