Change Audio Speed
ℹ️ How it works:
- Upload your audio file
- Pick a speed from 0.5x (slower) to 1.5x (faster)
- Download the adjusted audio instantly
Change Audio Speed Online for Free
Speed up or slow down any audio file while keeping the voice sounding natural. Our speed changer uses pitch-preserving time-stretching, so a sped-up recording doesn't turn into a chipmunk and a slowed-down one doesn't drop in tone. Upload an MP3, WAV, OGG, FLAC, AAC or M4A, choose a speed from 0.5x to 1.5x, and download the result. No sign-up and no watermarks.
How to Change Audio Speed
- Click the upload area above or drag and drop your audio file (up to 10 MB).
- Drag the speed slider — from 0.5x (half speed) up to 1.5x (faster), with steps in between.
- Apply the change and download your adjusted audio in its original format.
Available Speeds
The slider offers nine preset speeds for predictable, natural-sounding results: 0.5x, 0.75x, 0.8x, 0.9x, 1x (original), 1.1x, 1.2x, 1.25x and 1.5x.
Common Use Cases
- Audiobooks & podcasts – nudge the speed up to 1.25x or 1.5x to get through them faster
- Language learning – slow speech to 0.75x or 0.5x to catch every word
- Music practice – slow down a passage to learn it note by note
- Lecture review – speed up recorded lectures for quicker revision
- Transcription – slow a recording down so it's easier to type out
Frequently Asked Questions
No. The tool uses pitch-preserving time-stretching, so voices and instruments keep their natural tone whether you speed the audio up or slow it down.
You can choose from 0.5x (half speed) up to 1.5x, in nine preset steps. This range keeps the audio clear and natural — extreme speeds tend to introduce noticeable artifacts.
You can upload MP3, WAV, OGG, FLAC, AAC, M4A and similar formats, and the result downloads in the same format you uploaded. Need a different format? Use our Convert Audio tool.
Yes. The tool is completely free with no sign-up and no watermark, and you can upload audio up to 10 MB. Files are processed for your download and not shared.
Related Audio Tools
- Trim Audio – cut your audio to the part you need
- Adjust Volume – make audio louder or quieter
- Enhance Audio – normalize, EQ, de-ess and more
- Convert Audio – change the audio format
- Compress Audio – reduce audio file size