Speed up or slow down your audio without changing the pitch. Perfect for podcasts and music.
AI-powered audio review & delivery for voice production teams
Upload a file and select speed
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The Audio Speed Changer speeds up or slows down a recording. Tighten a slightly long voice-over to hit a time slot, or slow a clip down to transcribe or study it — you control how much faster or slower the playback runs.
To change pitch without changing speed, use the Pitch Shifter instead — this tool is about runtime.
By default, speeding up raises pitch and slowing down lowers it. To keep the original pitch, use a time-stretch option or the Pitch Shifter to compensate.
Modest changes (up to ~10–20%) stay natural for speech; larger changes start to sound obviously processed.
VoiceDeck adds AI-powered audio & video review and delivery for your whole team — so every file ships in spec, automatically.