BPM Alignment, Stems & DAW Export
Analyze tempo and harmony for arranging, mixing and DAW projects.
Input
Supports inputs in formats such as mp3 / wav / flac / ogg / m4a / aac / aif / aiff / mp4 / mov / mkv
Workflow
- Select songs; leave target BPM blank to retain their speed or enter a new tempo.
- Choose whether to split vocals and accompaniment, then export the matching WAV, MIDI and analysis files.
Parameter guide
- Leave empty to preserve speed, or enter 30–300 BPM to change the actual audio tempo. Constant stretching does not force every detected beat onto a grid.
- Change speed by one ratio across the song, preserving its internal tempo variations.
- Change the speed of the whole song by one ratio; suitable for recordings with a steady beat.
- Explicitly stretches between beats. Local speed can vary; review the reported range and timing warnings.
- Choose the detected BPM, half-time or double-time, or enter the source BPM manually.
- Meter of the song. Keep automatic detection, or pin 2 to 12 beats per bar when the downbeat grouping is known.