- Pitch moves in whole semitones from −24 to +24; the audio's duration stays exactly as recorded.
- Shifting can colour timbre and soften or sharpen transients — audition the exported file before using it.
- Input is 16-bit PCM WAV at 44100 Hz, mono or stereo, up to 120 seconds and 22,000,000 bytes; no MP3.
- Everything runs locally in the browser tab; the audio is never uploaded.
On this page
Pitch moves, duration does not
Tape machines and early samplers moved speed and pitch together: slow the tape down and the note drops, but the take drags with it. A digital pitch shifter takes the other road — it re-pitches the waveform while the timeline stays untouched. A ninety-second phrase shifted a full octave still ends on the same second it started on.
That is the whole deal here: pick a whole semitone value from −24 to +24, and the exported WAV keeps the input’s sample rate, channel count and exact length. There is no resampling and no time-stretch knob; duration never trades against pitch.
What a shift can do to timbre
Large shifts are audible beyond the note itself. Formants move with the waveform, so a voice shifted up can sound thinner and brighter, and one shifted down can sound darker. Percussive transients may soften or smear slightly. These are properties of the algorithm, not defects with a setting — listen to the exported file before using it in anything finished.
Supported files
The tool accepts 16-bit PCM WAV at 44100 Hz, mono or stereo, up to 120 seconds and 22,000,000 bytes. MP3 and other compressed formats are not supported, fractional semitone values are rejected, and nothing is uploaded: decoding and shifting happen in your browser tab.
Try it on your own file
Open the WAV pitch changer, load a file, set a whole-semitone shift, and compare the original and pitched previews before downloading.