Abstract Sounds

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Sounds which we are unable to link with a specific source (Sound source). When we hear Abstract Sounds we usually think about them as sounds in their own right; we…

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Acousmatic

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This word was first used by ancient Greeks and describes an audio-only presentation of sounds (free from the distraction of association with the sounds Sound Sources). When we listen to…

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Acoustic Ecology

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The study of the relationship between individuals (and communities) and the sounds of the environment that surrounds them. Two different examples of sonic environments (soundscapes) might be urban (a city)…

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Additive Synthesis

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A process of creating sounds in which complex sounds are made from the combination of simpler elements (such as sine waves). Different types of simple sounds can be combined to…

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ADSR

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ADSR (Attack, Decay, Sustain, Release) is a term used to describe the shape of sounds over time (see also envelope). Sounds that begin very quickly (for example a click) can be…

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Algorithmic music

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Algorithmic music involves the application of algorithms as part of the composition process (an algorithm is a procedure or formula, e.g., for solving a problem). This term is one of the…

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Amplification

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The boosting of a signal’s amplitude so as to increase the perceived volume and energy of the sound signal. Amplifiers may be electronic, or might be acoustic resonators (such as…

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Amplitude

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A technical term that describes loudness. The higher the amplitude of a sound wave, the louder it is. The amplitude relates to the amount of displacement that the sound wave…

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Amplitude Modulation

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A type of manipulation in which one input signal modulates the amplitude of another sound. When done in the sub-audio range by, for example a LFO (Low Frequency Oscillator) sine wave, the…

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Analogue

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A continuious signal in time, which in music, allows for the continuious capture of audio signals. Prior to digital technology all systems were analogue. Though analogue systems allow for a…

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Art of Noises

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Written by Luigi Russolo, the leaflet argued that traditional orchestras limited themselves to only four or five different types of sounds: Instruments played with the bow, Plucked instruments, Brass instruments, Woodwinds,…

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Automation

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A tool that allows you to change the variable parameters of a sound over time. By plotting points of automation it is possible to make Manipulations (effects) change over time. This allows the composer…

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