Space Designer volume envelope in Logic Pro for Mac

Volume envelope parameters

• Init Level field and node: Set the initial volume level of the impulse response attack phase. Drag the node vertically. It is expressed as a percentage of the full-scale volume of the impulse response file. The attack phase is generally the loudest point of the impulse response. Set Init Level to 100% to ensure maximum volume for early reflections.

• Attack field and node: Determine the time before the decay phase of the volume envelope begins. Drag the node horizontally.

• Decay field: Set the length of the decay phase.

  Note: The overall decay is determined by the global Length and Size parameter values. To explain, a maximum Length value and a Size value of 100% result in a decay that is the full length of the loaded impulse response.

• LIN button: The decay curve of the volume envelope is shaped by a linear algorithm, and results in a less natural-sounding reverb tail.

• EXP button: The decay curve of the volume envelope is shaped by an exponential algorithm, in order to generate the most natural-sounding reverb tail.

• End Level field: Set the end volume level. It is expressed as a percentage of the overall volume envelope. Drag the node vertically. Horizontal drag sets the Decay time.

  • If set to 0%, the reverb tail fades out completely towards the end of the Decay time.

  • If set to a higher value, the reverb tail will not have faded out completely at the end of the Decay time, which stops the reverb abruptly at that point. If the end time falls outside the reverb tail, End Level has no effect.

• Decay / End Level node: Drag the node horizontally to set the Decay value. Drag the node vertically to set the End Level value.

• Envelope curve: Drag the curve line to change the shape of the associated volume envelope phase.

• Bezier handles: Drag the hollow nodes to change the associated volume envelope phase between linear, exponential, logarithmic, or s-curve shapes.