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Pitch & Speed

Adjust pitch & speed

Dial speed and pitch with lightweight offline processing (OLA time-stretch + resample), preview, and download.

Runs in your browser. Your audio stays on this device — nothing is uploaded to BrowserSpaces for processing.

Speed

0.5× to 2× via overlap-add stretch.

Pitch

±12 semitones with duration restored.

Preview

Hear the result before export.

Local

No cloud audio API.

Use the tool

Speed uses overlap-add time-stretch; pitch uses resample + stretch-back. Good for drafts — not a studio phase vocoder.

How it works

Resample and overlap-add

Pitch uses resampling then stretch-back; speed uses grain overlap-add. Quality is draft-friendly, not a studio phase vocoder.

Three steps

  1. 1

    Load audio

    Drop a clip.

  2. 2

    Set controls

    Adjust speed and pitch.

  3. 3

    Export

    Download the processed file.