Unquantized hi-hats with varied velocities give a programmed pattern a live, human feel

Perfectly grid-quantized hi-hats at uniform velocity sound mechanical; deliberately leaving hats slightly off the grid and varying their velocities restores the micro-timing and dynamic inflection of a human player. The Armando tutorial programs a straight 16th-note hat pattern (open hat on the off-beats) but insists the hats are not quantized and have different velocities, and recommends actually playing them in via a MIDI controller and looping the best take. The principle is that groove lives in small timing and loudness deviations, not in the note grid itself; the same humanization applies to any repetitive percussion part.

Examples

Program 16th hats, then either play them live off a controller or nudge individual hits off-grid and randomise velocities. A/B against a rigidly quantized, uniform-velocity version to hear the groove appear.

Assessment

Take a stiff, fully-quantized uniform-velocity hat pattern and make it feel live; state which two properties you changed and why each matters.