Fix Suno tempo drift before your next session

Updated 16 October 2026

The first bars fit your drums, then the chorus starts slipping. If a Suno export keeps leaving the grid, check whether you have a tempo problem, a starting offset or stems that no longer line up with each other.

Why does a Suno song go off the grid?

Suno acknowledges that generated recordings can drift in tempo, particularly when they imitate older musical styles. A number in a prompt is not a measurement of the finished file. Check the audio you actually exported.

It is late by the same amount everywhere

Move the clip or set the first downbeat. A lead-in can make a steady recording look wrong.

It gradually leaves the click, or speeds up in one section

Check the detected tempo and the recording's beat positions. This is where a fixed-tempo export can help.

Vocals and drums disagree with each other

Check their start positions and export settings. Giving each stem a separate tempo correction can create a new mismatch.

First check Suno's own tempo controls

If you still have the project in Suno Studio, its documented route is to choose Manual BPM in the project tempo control, then extract and export the stems from that fixed-tempo project. Set the receiving DAW to the same BPM.

See Suno's Fixing Tempo Drift guide and its official tempo-drift tutorial. Labels and access can change. Listen to the export rather than assuming the setting alone solved it.

Fix tempo drift in a downloaded Suno song

Already have the audio, or still hear drift in the export? BPM Lock can work on the downloaded recording. It is free to use and needs no account. You do not need to regenerate a performance you want to keep.

1. Open the full mix in BPM Lock. Use the local audio file. Public song links are not supported.
2. Check the detected pulse. Play Original with the click. Inspect an early phrase, a busy section and the ending. Try the additional tracker if the markers miss the beat.
3. Listen to BPM locked. Move misplaced anchors. Skipping an anchor preserves its grid space and interpolates the timing between its neighbors; it does not invent a missing musical bar.
4. Render a corrected file. Choose WAV or AIFF for more editing, or MP3 for a smaller file. Crop to your chosen bar 1 only if that is how you want the export to start.
5. Check it in your DAW. Use the displayed export BPM, align the downbeat and listen against the session click before adding more parts.

BPM Lock corrects drift at the detected tempo rounded to a whole number. It cannot take a typed target such as 128 BPM. If your arrangement needs another speed, make the recording steady first, then change that file's tempo in your DAW.

Keep the timing of related stems together

Do not correct each stem independently and expect them to stay aligned. Sparse vocals, bass and drums can produce different beat maps. BPM Lock currently processes one file at a time and does not apply a shared warp map to a set of stems.

For a new separation, one option is to correct the full mix first and separate that corrected file with your usual stem tool. If you already need to preserve a multitrack project, use a common fixed-tempo export in the source project or a linked multitrack workflow in your DAW.

What tempo correction will not repair

It preserves pitch, but large stretches or incorrect anchors can still affect the sound. Check held vocals, cymbals and transitions. Timing correction will not restore missing lyrics, fix separation bleed or repair a generated arrangement that adds or loses a bar.

For an audio file you already have from Udio or another music generator, the same checks apply. BPM Lock reads the recording rather than connecting to a generator account. A clear, correctly detected pulse still matters.

Want to hear the process before using your own export? Try the original sample track, or watch the before-and-after comparison. The sample is synthesized for the demo; it is not a Suno recording.

Next: find and verify a song's BPM, lock a recording to one constant tempo, or align the export in a DAW.

Independent workflow guide. BPM Lock is not affiliated with Suno or Udio.