Notice on Auto-Mapping Accuracy: This engine generates stepcharts in real-time using mathematical spectral flux analysis to catch energy peaks. Because it relies on automated transients rather than manual human placement, complex songs (such as tracks with highly erratic BPM shifts, syncopated jazz rhythms, low-frequency vocal muddying, or intense background distortion) may occasionally result in note misalignments or unexpected rhythmic shifts. Adjust the Audio Offset slider above if you experience a consistent hardware processing delay.