Song FinderUpload an Audio File
Add a song, practice track, voice recording, or podcast in a supported audio format.
Audio Tools/ 01
Speed & Pitch Changer
Change audio speed without changing pitch, or transpose pitch independently online.
Free ForeverPrivacy First
Drop a file here or browse
MP3, WAV, FLAC, M4A, OGG - up to 150 MB, processed locally
How to Change Audio Speed and Pitch Online
Adjust playback speed and musical pitch independently with the online audio speed changer.
Set Speed and Pitch
Change tempo without changing key, or transpose pitch without changing playback duration.
Preview and Download
Listen to the adjusted audio, reset any control, and export the processed WAV file.
Why Use This Audio Speed and Pitch Changer
A focused browser tool for practice, transcription, remix preparation, and voice processing.
Independent Controls
Speed and pitch are separated so changing one does not automatically distort the other.
Real-Time Preview
Hear adjustments before export and refine the exact tempo or semitone shift you need.
Local Audio Processing
The SoundTouch workflow runs in the browser and exports a high-quality WAV result.
Change Tempo or Key for a Specific Job
Independent SoundTouch controls let you change tempo without intentionally changing key, or transpose without changing the selected speed. The separation is useful for practice and editing, but large shifts can create artifacts, so the preview remains part of the decision.
01
Slow down a section for practice
Lower speed while leaving pitch at zero semitones to study notes, timing, or spoken phrases without intentionally changing the original key. Slower playback increases duration, and extreme stretching may soften transients or add audible texture.
02
Transpose with measured steps
Move pitch in semitones and keep speed fixed when you need a new key. One semitone is one chromatic step and twelve make an octave; preview voices, cymbals, and sustained notes because larger shifts can expose artifacts.
Audio Tools
Frequently asked questions
Can I change speed without changing pitch?
Yes. The SoundTouch engine controls tempo and pitch independently, so you can change speed while retaining the original key or transpose while retaining the selected tempo. Extreme settings can still introduce audible time-stretching or pitch-shifting artifacts.
How far can I change audio speed or pitch?
Speed ranges from 0.5x to 2x, and pitch ranges from -12 to +12 semitones, or one octave in either direction. The controls are independent, but larger changes put more stress on transients, voices, and sustained notes, so preview the result before export.
Is audio speed and pitch processing done locally?
No. Everything runs in your browser using the Web Audio API. Your audio stays on your device.
Can I slow down audio without changing the pitch?
Yes. The speed control changes tempo independently, which helps with practice, transcription, and learning passages without shifting the original key.
Why do large speed or pitch changes sound artificial?
Time-stretching and pitch-shifting must reconstruct transients, formants, and sustained tones. Extreme settings expose that reconstruction most clearly, especially on voices and cymbals. Work in smaller steps and preview the difficult sections before exporting.
05 / Tools
Audio Tools
Ready to Identify Your Song?
No sign-up, no downloads. Just press play and find out.
Try Now - It's Free