Audio Speed Changer
Change audio playback speed
Upload audio file
Type
editor
Input
audio
Output
audio
- ✓ Free to use
- ✓ No registration required
- ✓ No file size limits
- ✓ Fast processing
- ✓ Secure & private
Audio Speed Changer increases or decreases the playback speed of any audio file. Speed up a lecture to save time, slow down a music tutorial to learn tricky passages, or create fun effects — with optional pitch preservation so sped-up voices do not sound like chipmunks.
- 1Upload your audio file.
- 2Choose a playback speed: 0.5× (half speed) to 2× (double speed), or enter a custom value.
- 3Toggle "Preserve Pitch" to keep the voice or music at the original pitch.
- 4Click "Change Speed" and download the result.
- →Speeding up lecture recordings to study more efficiently.
- →Slowing down music tutorials to practise difficult passages.
- →Creating time-stretched audio effects for creative projects.
- →Speeding up audiobooks for faster listening.
- →Slowing down speech for transcription or language learning.
Will changing speed affect audio quality?
Minor quality reduction is possible with extreme speed changes. Moderate adjustments (0.75× to 1.5×) are usually imperceptible.
What does "Preserve Pitch" do?
Without pitch preservation, speeding up audio raises the pitch (chipmunk effect). Enabling it keeps the voice sounding natural at any speed.
What is the maximum speed multiplier?
Speed can be set from 0.25× (quarter speed) up to 4× (quadruple speed).
Does this work for music?
Yes. Both speech and music files are supported.