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Entries found for search: sample

multisample : The distribution of several related samples at different pitches across the keyboard. Multisampling can provide greater realism in sample playback (wavetable) synthesis, since the individual samples donít have to be pitch-shifted over a large frequency range, with the result that the full range of pitches, timbres, and dynamics of the instrument are more accurately represented. The point on the keyboard at which one sample meets another is called the multisample split point.

sample-and-hold : The part of the A/D converter which actually does the job of sampling the signal. It measures the instantaneous signal voltage at a particular time and holds this level constant for the duration of the sampling interval as determined by the sampling rate. This level is meanwhile converted into a digital word before the sample-and-hold moves to the next sample. See aperture time errors.

sample (playback) synthesis : The production of a sound where a digital oscillator plays back a digitally sampled recording of an actual sound, such as a note played on a trumpet or guitar.

sampler : Essentially a digital recorder. An device that digitally records and plays back external sound sources, usually by allowing them to be distributed across a keyboard or other controller and played back at various pitches. Compare with synthesizer.

sample : (1) A digitally recorded representation of a sound. Also, a single word of the data that makes up such a recording. Also called a patch or a program. (2) To make a digital recording by taking regular measurements of the instantaneous voltage of an analog signal. See sampling. (3) Any single measurement of such a voltage.

SASBF (Structured Audio Sample Together with SAOL these describe Wavetable syntheses. This is used in MPEG-4. A computer downloads and decodes structured Audio files containing samples, instrument definitions, and performance information. The decoded data is then used to re-create the music on the userís system.

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