## ::Sampling (signal processing)

### ::concepts

Sampling::audio Samples::video Signal::digital Title::nyquist Sample::sampling Digital::audio

Intro Theory Practical considerations Applications Undersampling Oversampling Complex sampling See also Notes Citations Further reading External links

In signal processing, **sampling** is the reduction of a continuous signal to a discrete signal. A common example is the conversion of a sound wave (a continuous signal) to a sequence of samples (a discrete-time signal).

A **sample** is a value or set of values at a point in time and/or space.

A **sampler** is a subsystem or operation that extracts samples from a continuous signal.

A theoretical **ideal sampler** produces samples equivalent to the instantaneous value of the continuous signal at the desired points.

**Sampling (signal processing) sections**Intro Theory Practical considerations Applications Undersampling Oversampling Complex sampling See also Notes Citations Further reading External links

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