Audio Pitch Shifter Online

or drop files here

Transpose musical pitch up or down by semitones without altering tempo or playback speed. Shift keys for vocalists, tune instruments, or create vocal harmonies.

Transpose pitch from -12 to +12 semitones
Preserve the source sample count
Stereo-coherent overlap-add processing

Change key independently of speed

Unlike simple tape resampling where speed and pitch are linked, our granular pitch shifter re-slices audio into micro-grains to raise or lower pitch while holding tempo constant.

Match any singer’s vocal range

Transpose backing tracks up or down by exact semitones so vocalists can comfortably rehearse and record songs in their natural singing register.

Create unique vocal harmonies and effects

Shift pitch up 12 semitones for an octave-up vocal effect, or shift down 12 semitones for a deep bass voice texture without changing song timing.

Evaluate pitch-shift artifacts

Waveform-similarity overlap-add and resampling smooth window boundaries. Large shifts, dense mixes and sharp transients can still sound phasey or smeared; compare the full preview before saving WAV.

Technical references: Web Audio API specification

Audio Pitch Shifter FAQs

Does shifting pitch change the length of the audio file?

No. The duration and tempo remain exactly identical to the original track; only the fundamental frequencies and pitches are transposed.

How many semitones are in an octave?

There are 12 semitones in one musical octave. Shifting by +12 raises the pitch by exactly one full octave, while -12 drops it by an octave.

Can I shift by fractional semitones or cents?

The slider operates in whole semitone increments, which corresponds to standard musical piano keys and guitar frets for effortless tuning.

Is the pitch shifted in real-time or processed offline?

The tool processes the entire track with full precision, allowing you to preview the pitch-shifted audio in the player before downloading the WAV.

How do I change a song key to match my vocal range?

Adjust the semitone slider by +1 or +2 to raise the key, or -1 to -3 to lower it. Listen to the preview to verify your singing comfort, then download the WAV.

How does Audio Pitch Shifter update its preview?

Audio Pitch Shifter schedules a background render after a setting changes. The completed preview or analysis replaces the previous result automatically. Processing time depends on recording length and device performance; the status message shows when the new result is ready.

Audio Pitch Shifter Online