Treadmill
StepMania stepfile generator
01 Source audio
Drag & drop an MP3 or OGG here
or click to browse
Centre-cropped to a StepMania banner. Picking one also sets it as the background, uncropped.
A folder that already holds audio and its .sm. The chart is written back
into that stepfile in place — its other difficulties, artwork and preview sample are
kept, and the file it replaces is backed up beside it.
02 Chart
On-beat and readable: quarters and eighths, almost no crossovers.
How far apart the notes inside a run sit.
A DDR-style meter. Replaces Beginner/Easy/Medium/Hard/Challenge, which the corpus shows are far too coarse to be a spec — across 3,757 official charts, "Medium" spans meter 2 to 15.
03 Verify sync
Analyzing audio…
Bar lines fall every 4 beats from the offset. The downbeat click is pitched lower — it should land where the music's bar starts. Pull the song down to hear the click on its own, or the click down to check it against the mix. Shift-drag the waveform to pick a stretch that keeps steady time, then fit the BPM and offset to just that — the grid still applies to the whole song.
Grid fitted from onward and backfilled to the start of the track . Raise the budget for a longer intro, or set it to 0 to fit from the first sample.
Beat grid: beats fitted, residual , downbeat confidence
Suggested correction: (confidence )
⚠ Sync drifts across the track () — BPM may be off. Corrected BPM:
Initializing…