‹curve›
One curve header is used to define each curve.
The values for various points along the curve can then be set, from v000 to v127.
The default is v000=0 and v127=1. Any points along the curve not defined explicitly
will be interpolated linearly between points which are defined.
There are default built-in curves in ARIA. If no curve is specified for a modulation, curve 0 is used. The built-in ARIA curves are:
| Number | Description | Range | Notes |
|---|---|---|---|
| 0 | Default | 0 to 1 | Linear |
| 1 | Bipolar | -1 to 1 | Linear, used by CC10 panning by defeault |
| 2 | Inverted | 1 to 0 | Linear |
| 3 | Bipolar inverted | 1 to -1 | Linear |
| 4 | Concave | 0 to 1 | Nonlinear, used for CC7 volume tracking and amp_veltrack |
| 5 | Xfin power curve | 0 to 1 | Based on Dimension Pro behavior |
| 6 | Xfout power curve | 1 to 0 | Based on Dimension Pro behavior |
These cannot be overwritten. Use curve_index numbers of 7 and above for custom curves.
Curve_index in ARIA can be any integer from 0 to 254.
Examples
<curve>curve_index=17
v000=0
v095=1
v127=1
<curve>curve_index=18
v000=0
v095=0.5
v127=1
Here's a scenario using one MIDI CC to control the amplitude of two samples along two different curves.
<region>
amplitude_oncc110=100
amplitude_curvecc110=9
sample=bigger.wav
<region>
amplitude_oncc110=100
amplitude_curvecc110=10
sample=smaller.wav
//The curves for the room ambiences - bigger room first
<curve>curve_index=9
v000=0
v063=0
v127=1
<curve>curve_index=10
v000=0
v063=1
v127=0.1
And how to use the default curve 1 to create a tuning control which goes down and up, with the pitch unmodulated when the control is in the middle.
pitch_oncc27=100
pitch_curvecc27=1