Speed & Pitch Changer
Change audio speed and pitch online. Slow down or speed up audio from 0.5x to 2x and shift pitch by semitones. Free prev
Upload a WAV, MP3, OGG, M4A or WebM file.
Upload a file to begin.
How to Use Speed & Pitch Changer
- Upload a file: Upload any audio file — voice memos, songs, lectures or sound effects.
- Adjust speed & pitch: Drag Speed (0.5x to 2x) to change tempo and Pitch (-12 to +12 semitones) to shift the musical key.
- Preview & download: Press Preview to hear the settings, then Process & Download to save the result as WAV.
About Speed & Pitch Changer
Speed & Pitch Changer lets you change how fast audio plays and shift its musical pitch.
- Speed Control: Slow down to 0.5x or speed up to 2x for language learning and transcription.
- Pitch Shift: Move the key up or down by up to 12 semitones for creative voice effects.
- Real-time Preview: Audition any combination of speed and pitch before downloading.
Learn solos note by note, make audio memos listenable, or create chipmunk and monster voice effects.
Frequently Asked Questions
How do I change the speed of audio?
Upload a file, move the Speed slider between 0.5x and 2x, preview it, then click Process & Download to save the result.
Can I change pitch and speed separately?
Yes — Speed changes how fast it plays and Pitch shifts the musical key by up to 12 semitones up or down, independently.
What is this useful for?
Learning music by slowing down solos, making voice memos listenable, creating chipmunk or monster voices, and tempo-matching audio.