| rdfs:comment
| - miniatur|300px|ADSR-Phasen Ein Hüllkurvengenerator oder ADSR ist eine elektronische Schaltung zum Erzeugen einer Hüllkurve. Eine Hüllkurve ist dabei eine zeitlich veränderliche Steuerspannung, die durch den Tastenanschlag (Gate) eines Keyboards ausgelöst wird. Die Abkürzung ADSR steht für die vier Phasen der Hüllkurve: Attack (Anstieg), Decay (Abfall), Sustain (Halten), Release (Freigeben).
- The most common type of envelope generator, producing a four-segment signal corresponding to four phases of a note’s dynamics (in the usual case where the signal is used to control a voltage controlled amplifier that determines the note’s volume).Each letter of the acronym stands for one of the four phases, in time order: attack, decay, sustain, and release. A typical ADSR allows the performer to set rise/fall rates for attack, decay, and release, and a level for the sustain phase.(Fancier envelope generators may have more settings or more operational phases.) Conventionally, an ADSR is triggered by the leading edge of a gate signal. The gate going high initiates the attack phase, in which the ADSR’s output rises from the zero level to a set maximum level at the chosen rate.This is immedia
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| abstract
| - miniatur|300px|ADSR-Phasen Ein Hüllkurvengenerator oder ADSR ist eine elektronische Schaltung zum Erzeugen einer Hüllkurve. Eine Hüllkurve ist dabei eine zeitlich veränderliche Steuerspannung, die durch den Tastenanschlag (Gate) eines Keyboards ausgelöst wird. Die Abkürzung ADSR steht für die vier Phasen der Hüllkurve: Attack (Anstieg), Decay (Abfall), Sustain (Halten), Release (Freigeben).
- The most common type of envelope generator, producing a four-segment signal corresponding to four phases of a note’s dynamics (in the usual case where the signal is used to control a voltage controlled amplifier that determines the note’s volume).Each letter of the acronym stands for one of the four phases, in time order: attack, decay, sustain, and release. A typical ADSR allows the performer to set rise/fall rates for attack, decay, and release, and a level for the sustain phase.(Fancier envelope generators may have more settings or more operational phases.) Conventionally, an ADSR is triggered by the leading edge of a gate signal. The gate going high initiates the attack phase, in which the ADSR’s output rises from the zero level to a set maximum level at the chosen rate.This is immediately followed by the decay phase, in which the output falls from the maximum level to the sustain level. The output remains at the sustain level until the gate signal goes back low.At that point the release phase executes, and the ADSR output falls from the sustain level to its zero level at the chosen rate. Options often found on ADSRs are an input that allows all of the rates to be scaled (a function often tied to keyboard velocity, for acoustic instrument simulation), and a switch that allows making the rise/fall rates exponential with time instead of constant. (Such is often useful for percussion sounds.)
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