File Convert

Convert AMR to AU

Free online AMR-to-AU converter — upload a AMR file and download a AU. Fast, private, no signup.

Loading the converter…

AMR vs AU

AMR

Adaptive Multi-Rate — speech codec used by phones; convert-from only.

About AMR ↗

AU

Sun/NeXT AU — a simple, long-lived PCM audio container.

About AU ↗

AMR to AU: frequently asked questions

How do I convert AMR to AU?

Drop your AMR file into the converter above — we auto-detect the real format from its bytes, convert it, and give you a AU to download. No software to install.

Is the AMR to AU converter free?

Yes. Convert AMR to AU for free right in your browser, with no account needed to get started.

Is it safe and private?

Your file is transferred over an encrypted connection and anonymous uploads are temporary. You can also view and strip metadata (location, device, author) before you download.

What's the difference between AMR and AU?

Adaptive Multi-Rate — speech codec used by phones; convert-from only. Sun/NeXT AU — a simple, long-lived PCM audio container.

Related conversions

Convert AMR to: MP3 · WAV · FLAC · M4A · AAC · AC3 · AIFF · CAF · DTS · M4B

Convert to AU from: AAC · AC3 · AIFF · APE · CAF · DFF · DSF · DTS · FLAC · M4A

Browse all supported formats →