How to Use Pitch Changer
- Upload an audio or video file
- Set the pitch in semitones (positive = higher, negative = lower)
- Toggle Preserve Speed to keep the original tempo
- Click Process and download
Features
- Shift pitch up or down by -12 to +12 semitones — a full octave each way
- Preserve Speed keeps the original tempo, so it doubles as a song key changer
- Works with audio files and video soundtracks
- Chipmunk and deep-voice effects when you let speed follow the pitch
- Output as MP3, WAV, AAC, OGG, or FLAC
- 100% private — processing runs in your browser, files never leave your device
Frequently Asked Questions
- What is a semitone?
- A semitone is the smallest interval in Western music — the distance between adjacent piano keys. +12 semitones = one octave up, -12 = one octave down.
- How is this different from nightcore?
- Nightcore speeds up AND raises pitch together for a specific effect. Pitch Shift lets you change pitch independently without changing speed.
- Can I use this as a voice changer?
- Yes. Shifting pitch up (+3 to +5 semitones) creates a higher-pitched voice. Shifting down (-3 to -5) creates a deeper voice.
- How do I change the pitch of a song without changing the speed?
- Keep the Preserve Speed toggle on (it's the default). The pitch changer then compensates the tempo internally, so a +3-semitone shift plays at exactly the original speed — only the notes move.
- Can I change the key of a song with this?
- Yes — keys move in semitone steps, so shifting by +1 semitone transposes C to C♯, +2 takes C to D, and so on. Singers often drop a backing track by 1-3 semitones to match their range; see our dedicated song key changer page for the workflow.
- Will changing the pitch reduce audio quality?
- The shift itself is transparent at small intervals (±1-4 semitones). Larger shifts progressively color the sound — vocals get noticeably chipmunky above +6 or growly below -6 — which is often the desired effect. Export to WAV or FLAC to avoid any additional lossy-encoding step.