For example, in electronic music, an algorithm can provide the instructions for altering a signal in an effects processor or changing parameters in a synth patch. With Poly Aftertouch, each key sends its own stream of aftertouch values.Īlgorithm: A set of instructions used to solve a particular problem in a finite number of steps.

With Channel Aftertouch, all keys trigger a common stream of aftertouch values that affect the entire keyboard. There are two variations: Channel and Polyphonic. See S/PDIF.ĪFM: Abbreviation for Audio Frequency Modulation, the processing scheme used for recording high-quality audio in videocassette recorders equipped with “Hi-fi” stereo audio.Īftertouch/Pressure: MIDI continuous control message derived from the amount of pressure applied to a controller key, or keys, after they have been depressed. The standard describes a format for transmitting two channels of digital audio along a serial cable. AES/EBU digital standard: Digital audio standard developed jointly by the Audio Engineering Society (AES) and the European Broadcast Union (EBU).

Sponsors large annual conventions showcasing new audio technologies and products. See Envelope Generator.ĪES: The Audio Engineering Society, a professional association of sound engineers headquartered in New York City, with chapters throughout the world. The four stages of an ADSR envelope: 1 Attack, 2 Decay, 3 Sustain, 4 Release.ĪDSR: Abbreviation for “Attack, Decay, Sustain, Release” the four stages of a standard envelope generator.

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