Speed Up an Audiobook

Get through an audiobook faster while keeping the narrator clear.

无需登录文件保持私密

将文件拖放到此处或点击浏览

MP3, WAV, FLAC, OGG, AAC, M4A, Audio 无文件大小限制

浏览文件

你的文件永远不会离开你的设备。所有处理都在你的浏览器中本地进行。

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

audiobooks tips

📚

Natural-pitch mode keeps the narrator sounding human at 1.25×–2×.

🧠

Start at 1.25× and work up as your ear adjusts to faster speech.

🎧

Great for chapters you're reviewing rather than experiencing for the first time.

🔒

Your files stay on your device.

选择文件

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

处理

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

下载

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

✓完全免费——永远没有隐藏费用

✓无需账号、邮箱或登录

✓文件永远不会离开你的设备

✓绝无文件大小限制

✓所有输出均无水印

Speed Up a Podcast

Listen faster by speeding up a podcast with natura

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

Slow Down Audio for Transcription

Slow speech down to make it easier to transcribe b