Ableton/Live/UG/30 MIDI Effect Reference/08 Velocity
- Velocity remaps incoming velocities (1–127) into a chosen output range.
- The Velocity Curve grid maps the input range (Lowest and Range, X axis) onto the output range (Out Low and Out Hi, Y axis). Out Low 80 with Out Hi 127 makes even soft playing come out loud. Lowest and Out Low at 0 with Range and Out Hi at 127 leaves velocities nearly unchanged.
- Operation applies the mapping to Note On velocity, Note Off (release) velocity, or both.
- Mode handles velocities outside the input range:
- Clip — clamps them into the range
- Gate — removes those notes; an LED under the grid flashes
- Fixed — every note gets the Out Hi velocity
- Random moves each velocity up or down by up to the set amount, inside the output range. A gray band around the curve shows the random spread.
- Drive pushes the curve toward one end: positive values make most notes loud, negative values soft.
- Compand spreads velocities toward the extremes (positive) or squeezes them toward the middle (negative).