sampling
sam·pling- the act or process of taking a small part or quantity of something as a sample for testing or analysis
- the sample so taken
- the practice or process of taking a sample (noun) and reusing it in another context
sampling
noun
- Statistics See sample.
- a. The act, process, or technique of selecting an appropriate sample.b. A small portion, piece, or segment selected as a sample.
sampling
- Present participle of sample.
(plural samplings)
- the process or technique of obtaining a representative sample
- a sample
- (statistics) the analysis of a group by determining the characteristics of a significant percentage of its members chosen at random
- (signal processing) the measurement, at regular intervals, of the amplitude of a varying waveform in order to convert it to digital form
- (music) a technique for electronically splicing pieces of previously recorded sound as part of a composition
sampling - Computer Definition
(1) In statistics, the analysis of a group by determining the characteristics of a significant percentage of its members chosen at random.
(2) Converting analog signals into digital form. Audio and other analog signals are continuous waveforms that are analyzed at various points in time and converted into digital samples. The accuracy with which the digital samples reflect their analog origins is based on "sampling rate" and "sample size." See A/D converter. Sampling Rate - When to Measure The sampling rate is the number of times per second that the waveform is measured, which typically ranges from 8 to 192 thousand times per second (8 kHz to 192 kHz). The greater the rate, the higher the frequency that can be captured. For a comparison of high-quality samples, see high-resolution sampling rates. The sampling rate must be at least twice that of the analog frequency being captured. For example, the sampling rate used to create the digital data on a CD is 44.1 kHz, slightly more than double the 20kHz frequency an average person can hear. The sampling rate for digitizing voice for a toll-quality conversation is typically 8,000 times per second (8 kHz), twice the 4 kHz required for the full spectrum of the human voice. See analog and Nyquist theorem. Sample Size - The Measurement Also called "resolution" and "precision," the sample size is the measurement of each sample point on a numeric scale. Known as "quantizing," the sample point is turned into the closest whole number. The more granular the scale (the more increments), the more accurate the digital sample represents the original analog signal. See oversampling, quantization and PCM.