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AUDIO TOOLS · RUNS LOCALLY
Audio speed changer
Speed up or slow down audio recordings directly in your browser. Maintain original pitch or alter tempo for practice, transcription, and video sync.
FREE · NO ACCOUNT · 100% LOCAL PROCESSING · EXPORT WAV
WHY THIS ONE
Accurate tempo control without server upload or compression loss
Most online audio changers upload your files to distant servers, queue processing, and re-compress your music. PrismPoster does it instantly in Web Audio.
Pitch-Lock Preservation
Speed up dialogue or slow down tricky musical solos without sounding like a chipmunk or demon.
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PAST THE PAGE
Need full stems or original compositions?
PrismPoster Music Studio generates complete studio tracks in 100 languages, removes vocals, and isolates instruments.
- Split vocals and instrumental stems with AI vocal remover.
- Generate complete genre tracks with customizable BPM.
- Free account starts with 50 one-time credits to test generation.
This browser tool is free and requires no account.
Explore Music StudioQUESTIONS
Audio speed & tempo, answered
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The studio behind this tool
One free account. Six studios.
Every free tool on this page is cut from PrismPoster itself — six studios that share one credit wallet, one library, and one timeline editor. Where the free tool stops, the studios keep going.
Omni Studio
Connect images, video, and music on one node canvas and build a piece across mediums without leaving the flow.
Image Studio
Generate pictures from prompts or references, then refine them in place with Magic Edit — remove objects, retouch, upscale.
Video Studio
Turn a prompt or a still image into a moving clip, in vertical or widescreen for wherever it ships.
Character Studio
Design a character once and reuse them consistently — the same face in new images, scenes, and clips.
Storyboard
Plan a video scene by scene, then send each shot to the studios to render.
Music Studio
Write full tracks with vocals or instrumentals for your videos and streams.
Start free
200 credits to start — one-time, no card
- New accounts start with a one-time grant of 200 credits, not a trial that expires.
- Your first video renders free at 720p, and one 10-second extension of it is free too — both on top of the credits.
- Everything you make lands in your library, ready for the timeline editor.
First-month offer
Unlock 20% off your first month
First-time subscribers unlock 20% off the first month of any monthly plan — a one-time personal window of 72 hours that opens when you first engage and never resets.
While your window is open, the discount is applied automatically at checkout — there is no code to enter.
Explore more
BPM tapper
Tap beats in real time to calculate exact tempos and sync delays.
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Pricing
Credit costs and studio access tiers.
Ready to produce full audio?Generate, isolate, and arrange.
Create broadcast-ready tracks, isolate stems, and generate synced visuals in one workspace.