This sketch demonstrates how to use the getUpdatePeriod method of a FloatControl object. A FloatControl is what is returned by the gain, volume, pan, and balance methods of a Controller object. The class used here is an AudioOutput but these control methods are also available on AudioSample, AudioSnippet, AudioInput, and AudioPlayer objects. The FloatControl class is defined by the JavaSound API and it represents a control of a DataLine. A DataLine is a low-level JavaSound class that is used for sending audio to, or receiving audio from, the audio system. getUpdatePeriod gets the smallest time interval, in microseconds, over which the control's value can change during a shift (see the example Controller >> FloatControl >> shift). If the implementation does not support value shifting over time, it should set the control's value to the final value immediately and return -1 from this method.

Source code: getUpdatePeriod

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