Free online pitch shifter.
This free online pitch shifter tool allows you to change the pitch of audio files (mp3 or wav format), without affecting the tempo. You can also save pitch shifted files as an mp3. To begin, click the "choose file" button to select the audio file from your computer that you would like to pitch shift. If you are looking for a way to change tempo without affecting pitch, please try our time stretcher tool.
Clicking the play button will then commence playback, and the pitch can be altered either by inputting a number of semitones in the text box, or by using the slider.
By default, the tempo is set to remain at its original value, ie reducing the pitch will not slow down the audio file. However, if you do want the track to slow down, simply uncheck the "maintain tempo" option.
If you would like to save a pitch-shifted file, please tick the "save output to downloadable file" checkbox. When this checkbox is ticked, every time the file is played, the output will be collected ready for saving. Once the audio is paused, or reaches the end of the file, a downloadable file will appear at the bottom of the grey box under the "Recordings" header. The Status log shows the current status of recording. (Please note that these headings are only visible if the "save output to downloadable file" checkbox is ticked.)
Please note this tool uses the very latest web technologies so is currently only compatible with the newest releases of Chrome, Safari and Firefox.
There is a multitude of reasons why shifting the pitch of audio can be useful. For example, if a vocalist is struggling to hit all the high notes are reach the low notes in a piece of music, they can shift the pitch to a range more comfortable with their range.
Similarly, many artists, such as Jimi Hendrix, often played guitar with all the notes tuned down half a step. Amateur guitarists wanting to play along, can use the pitch shifter to adjust the track one semitone upwards so they don't have to retune their guitar if they want to play along.