Audio Speed Changer
Play a recording faster or slower while voices stay natural. Useful for practising music, transcribing interviews and getting through long lectures.
- Limits 100 MB per file · 1 file at a time · Up to 3 hours · Up to 300 runs a day
- Where it runs Your file goes to our server and is deleted with the result after 1 hour, or after 24 hours when signed in.
- Cost Free, with the limits above. No account needed.
Where to find it
Every address below opens the same tool. The first address is the one to bookmark and share.
- speed.openvibe.toolsPrimary
People also call this
What it's for: Speed up or slow down audio without changing pitch.
- change audio speed
- speed up audio
- slow down audio
- slow down song
- tempo changer
Use it from code
POST https://openvibe.tools/api/v1/tools/speed/run- Needs a signed-in browser session or a token with
tools.tool.run. - Long work answers 202 with a job to follow; short work answers with the result. Takes 1 file, up to 100 MB each.
curl -X POST https://openvibe.tools/api/v1/tools/speed/run \
-H 'Authorization: Bearer $OPENVIBE_TOKEN' \
-F '[email protected]'Inputs: JSON Schema · OpenAPI · from JavaScript: tools.run("speed", …) in openvibe-sdk · How the API works
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One account works on every site. Open source and community-run.