For more detailed explanations of these concepts, see Huber and Runstein
1997; Roads 1996; Truax 1999.
1200s: Technics SL-1200 series of turntables, originally released in the
1970s and since established as the unofficial industry standard for club
dj ing and turntablism
accel-decel (accelerando-decelerando): a gradual speeding up and slowing
down of musical tempo
acoustic: a sound or instrument that is not amplified or mediated elec-
tronically
acoustics: the study of the production, effects, and transmission of sound
waves; also used to describe how a spatial environment affects sound
algorithm: a set of procedures for accomplishing tasks, usually carried out
by a computer. Algorithmic music composition involves writing a com-
puter program to generate or process sounds based on specific parame-
ters and step-by-step processes
amplifier: a device that boosts signal level by increasing its amplitude
amplitude: the “level” of a sound, perceived as volume; shown as the
distance above or below the horizontal axis on a graph of a signal’s
waveform
analog: a continuously variable quantity. An analog audio signal has con-
tinuously variable amplitude and frequency values; an analog circuit
provides a continuous output as a response from its input (as opposed
to the discrete steps of digital values)
arp: one of various synthesizers designed by Alan R. Pearlman from 1969
to 1981
attack: the first stage of an envelope; ranges from the beginning of a sound
to its peak amplitude
attenuation: reduction of the amplitude of an audio signal
band: a specified range of frequencies (see also equalization and filter)
bank: in a synthesizer, sampler, or computer, a storage location that holds
a large number of individual sounds
Glossary
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