Audio speed changer
Listen to any audio file faster or slower — from half speed for transcription up to 4× for skimming lectures. Playback happens locally in your browser; nothing is uploaded.
Does the pitch change?
In modern browsers the pitch is preserved, so voices stay natural instead of turning into chipmunks. This page changes playback only — your file is untouched. To export a permanently speed-changed copy, you would need to re-encode the audio.