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Fichiers et médias

Changeur de vitesse audio

Speed up or slow down audio without changing pitch.

Runs in your browser

Drop a file or click to browse

0.5× to 2.0× preserving pitch (FFmpeg atempo)

FFmpeg.wasm runs entirely in your browser. The first use downloads ~30 MB of engine — cached for every subsequent run.

Note de la rédaction

Understanding · Faster, same pitch.

Ce chapitre approfondi n'est actuellement disponible qu'en anglais. L'outil de conversion ci-dessus fonctionne dans votre langue ; le long article explicatif n'a pas encore été traduit.

Questions fréquentes

Quick answers.

›Will the audio pitch change if I speed it up?

No. The tool uses a time-stretching algorithm that preserves the original pitch while only altering the playback duration.

›Which audio formats are supported?

Most standard formats compatible with your browser are supported, including `MP3`, `WAV`, `OGG`, and `AAC`.

›Does this tool upload my audio files?

No. All audio processing is handled by your browser's local engine. Your files stay on your device and are never sent to our infrastructure.

›Can I save the modified audio file?

Yes. After adjusting the playback speed to your preference, you can export and download the resulting audio file directly from the interface.

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