File Convert

Convert AU to AC3

Free online AU-to-AC3 converter — upload a AU file and download a AC3. Fast, private, no signup.

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AU vs AC3

AU

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

About AU ↗

AC3

Dolby Digital (AC-3) — DVD/broadcast surround audio.

About AC3 ↗

AU to AC3: frequently asked questions

How do I convert AU to AC3?

Drop your AU file into the converter above — we auto-detect the real format from its bytes, convert it, and give you a AC3 to download. No software to install.

Is the AU to AC3 converter free?

Yes. Convert AU to AC3 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 AU and AC3?

Sun/NeXT AU — a simple, long-lived PCM audio container. Dolby Digital (AC-3) — DVD/broadcast surround audio.

Related conversions

Convert AU to: MP3 · WAV · FLAC · M4A · AAC · AIFF · CAF · DTS · M4B · M4R

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

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