Sampling may refer to: *

Sampling (signal processing) In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal. A common example is the conversion of a sound wave to a sequence of "samples". A sample is a value of the signal at a point in time and/or s ...

, converting a continuous signal into a discrete signal * Sampling (graphics), converting continuous colors into discrete color components *

Sampling (music) In sound and music, sampling is the reuse of a portion (or sample) of a sound recording in another recording. Samples may comprise elements such as rhythm, melody, speech, sounds or entire bars of music, and may be layered, equalized, sped up o ...

, the reuse of a sound recording in another recording **

Sampler (musical instrument) A sampler is an electronic or digital musical instrument which uses sound recordings (or " samples") of real instrument sounds (e.g., a piano, violin, trumpet, or other synthesizer), excerpts from recorded songs (e.g., a five-second bass guitar ...

, an electronic musical instrument used to record and play back samples * Sampling (statistics), selection of observations to acquire some knowledge of a statistical population *

Sampling (case studies) A case study is an in-depth, detailed examination of a particular case (or cases) within a real-world context. For example, case studies in medicine may focus on an individual patient or ailment; case studies in business might cover a particular fi ...

, selection of cases for single or multiple case studies * Sampling (audit), application of audit procedures to less than 100% of population to be audited * Sampling (medicine), gathering of matter from the body to aid in the process of a medical diagnosis and/or evaluation of an indication for treatment, further medical tests or other procedures. * Sampling (occupational hygiene), detection of hazardous materials in the workplace *Sampling (for testing or analysis), taking a representative portion of a material or product to test (e.g. by physical measurements, chemical analysis, microbiological examination), typically for the purposes of identification, quality control, or regulatory assessment. See Sample (material). Specific types of sampling include: * Chorionic villus sampling, a method of detecting fetal abnormalities *

Food sampling Food sampling is a process used to check that a food is safe and that it does not contain harmful contaminants, or that it contains only permitted additives at acceptable levels, or that it contains the right levels of key ingredients and its lab ...

, the process of taking a representative portion of a food for analysis, usually to test for quality, safety or compositional compliance. (Not to be confused with Food, free samples, a method of promoting food items to consumers) * Oil sampling, the process of collecting samples of oil from machinery for analysis * Theoretical sampling, the process of selecting comparison cases or sites in qualitative research * Water sampling, the process of taking a portion of water for analysis or other testing, e.g. drinking water to check that it complies with relevant water quality standards, or river water to check for pollutants, or bathing water to check that it is safe for bathing, or intrusive water in a building to identify its source. *

Work sampling Work sampling is the statistical technique used for determining the proportion of time spent by workers in various defined categories of activity (e.g. setting up a machine, assembling two parts, idle…etc.). It is as important as all other statis ...

, a method of estimating the standard time for manufacturing operations.

See also