Observed arrival · 2026-10-08
SpeedUpAudio changes tempo without changing pitch
A browser-based audio tool that speeds up or slows down files from 0.5× to 3× while preserving pitch.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Listeners, musicians, language learners, and video editors
- Worth noticing
- Its three engines trade processing speed against sound texture and format support; FFmpeg downloads a 31 MB engine on first use.
Field notes
The page walks users through dropping a file, setting a multiplier, previewing the change, and saving an MP3 or WAV. Its engine guide distinguishes 40-millisecond waveform cuts for speech from spectrum-based processing for sustained notes, and notes that sharp drum hits may soften with the latter. FFmpeg is offered for less common formats, with a 31 MB first-use download.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue