Sampling may refer to:
- Sampling (signal processing)
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 to a sequence of samples ....
, converting a continuous signal into a discrete signal
- Sampling (music)
In music, sampling is the act of taking a portion, or sample, of one sound recording and reusing it as an instrument or a different sound recording of a song. This is typically done with a sampler, which can be a piece of hardware or a computer program on a digital computer. Sampling is also...
, re-using portions of sound recordings in a piece
- Sampler (musical instrument)
A sampler is an electronic musical instrument closely related to a synthesizer. Instead of generating sounds from scratch, however, a sampler starts with multiple recordings of different sounds added by the user, and then plays each back based on how the instrument is configured...
, closely related to a synthesizer
- Sampling (statistics)
Sampling is that part of statistical practice concerned with the selection of individual observations intended to yield some knowledge about a population of concern, especially for the purposes of statistical inference....
, selection of observations to acquire some knowledge of a statistical population
- Sampling (case studies), 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 (for testing or analysis), taking a representative portion of a material or product to test (e.g.
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Sampling may refer to:
- Sampling (signal processing)
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 to a sequence of samples ....
, converting a continuous signal into a discrete signal
- Sampling (music)
In music, sampling is the act of taking a portion, or sample, of one sound recording and reusing it as an instrument or a different sound recording of a song. This is typically done with a sampler, which can be a piece of hardware or a computer program on a digital computer. Sampling is also...
, re-using portions of sound recordings in a piece
- Sampler (musical instrument)
A sampler is an electronic musical instrument closely related to a synthesizer. Instead of generating sounds from scratch, however, a sampler starts with multiple recordings of different sounds added by the user, and then plays each back based on how the instrument is configured...
, closely related to a synthesizer
- Sampling (statistics)
Sampling is that part of statistical practice concerned with the selection of individual observations intended to yield some knowledge about a population of concern, especially for the purposes of statistical inference....
, selection of observations to acquire some knowledge of a statistical population
- Sampling (case studies), 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 (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
Specific types of sampling include:
- Chorionic villus sampling
Chorionic villus sampling is a form of prenatal diagnosis to determine chromosomal or genetic disorders in the fetus. It entails getting a sample of the chorionic villus and testing it...
, 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 label declarations are correct, or to know the levels of...
, 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 samplesA free sample or freebie is a portion of food or other product which is given out in shopping malls, grocery stores, and other venues.
, a method of promoting food items to consumers)
- Oil sampling
Oil sampling is a procedure for collecting a volume of fluid from lubricated or hydraulic machinery for the purpose of oil analysis. Much like collecting forensic evidence at a crime scene, when collecting an oil sample, it is important to ensure that procedures are used to minimize disturbance of...
, the process of collecting samples of oil from machinery for analysis
- Theoretical sampling
Theoretical sampling is a term coined by Barney Glaser and Anselm Strauss in 1967 in the context of social research to describe the process of choosing new research sites or research cases to compare with one that has already been studied...
, 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.