Slow Down Audio for Transcription

Slow speech down to make it easier to transcribe by ear.

Nid oes angen mewngofnodiMae ffeiliau'n aros yn breifat

Gollwng ffeiliau yma, neu cliciwch i bori

MP3, WAV, FLAC, OGG, AAC, M4A, Audio dim cyfyngiad maint ffeil

Pori ffeiliau

Nid yw eich ffeiliau byth yn gadael eich dyfais. Mae'r holl brosesu yn digwydd yn lleol yn eich porwr.

Speed up or slow down audio — keep the natural pitch (great for podcasts and audiobooks) or shift the pitch. Runs entirely in your browser.

transcription tips

⌨️

Slow to 0.75× with natural pitch so you can keep up while typing.

🗣️

Useful for fast or accented speech that's hard to catch at full speed.

🎧

Keep pitch natural so words stay recognisable.

🔒

Sensitive recordings stay on your device.

Dewiswch Ffeil

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Lawrlwythwch

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓Hollol rhad ac am ddim - dim costau cudd, byth

✓Nid oes angen cyfrif, e-bost na mewngofnodi

✓Nid yw ffeiliau byth yn gadael eich dyfais

✓Dim cyfyngiadau maint ffeil o gwbl

✓Dim dyfrnodau ar unrhyw allbwn

Speed Up a Podcast

Listen faster by speeding up a podcast with natura

Speed Up an Audiobook

Get through an audiobook faster while keeping the

Make a Nightcore / Sped-Up Edit

Speed up and pitch up a track for the nightcore ef

Make a Slowed + Reverb Edit

Slow a track down and lower its pitch for the slow