How do I change audio speed online?

Upload an audio file, choose a speed preset or custom speed, preview it in the browser, then process and download the new audio file.

Does the preview match the output?

The preview uses the same speed value that is sent to the server. The final export uses FFmpeg tempo processing to create a matching speed-changed file.

Which formats can I export?

The audio speed changer exports M4A, MP3, WAV, or FLAC.

Change Audio Speed Online

Preview a speed change live, then export the same tempo as a new audio file.

Change Audio Speed Online

Preview a speed change live, then export the same tempo as a new audio file.

speed

Load Audio

Drag and drop your audio here, or pick one from your device.

Selected File

Awaiting upload

No audio loaded yet.

Speed Setup

Choose a preset or set a custom speed

Slower 0.75x for review or transcription. Normal 1x original timing. Faster 1.25x for light speed-up. Fast 1.5x for podcasts and long notes. Double 2x for quick review. Ultra Fast 5x for scanning long recordings. Maximum 10x for extreme speed-up. Custom Use the slider below.

Custom Speed 1.25x

1.25x makes the audio shorter and faster while preserving pitch.

Output Format

output

Output Filename

badge

Output speed: 1.25x exported as M4A.

Awaiting upload

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