AAC to AC3 Converter
Convert AAC files to AC3 in seconds, right in your browser. Drop in one file or a whole folder, pick your quality settings and download - nothing is uploaded to a server.
Drop AAC files here
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more · Processed on your device - nothing is uploaded
How to convert AAC to AC3
- Click "Choose files" or drag your AAC files onto the page.
- Make sure "AC3" is selected as the output format (384 kbps is a good default).
- Optionally click Edit to trim, adjust volume or add effects.
- Click Convert, then Download your AC3 files.
Why convert AAC to AC3?
AC3 may be better supported by your device or app. To keep quality, choose a bitrate equal to or higher than the original AAC.
AC3 is best for DVD authoring, home theatre and video production. DVD/Blu-ray players, AV receivers, smart TVs, VLC.
Will I lose quality?
Converting between two lossy formats re-encodes the audio, which can add a small amount of loss. Use a bitrate at least as high as the original (384 kbps or more) to keep it transparent.
AAC vs AC3
| AAC | AC3 | |
|---|---|---|
| Full name | Advanced Audio Coding (ADTS) | Dolby Digital (AC-3) |
| Type | lossy | lossy |
| Best for | streaming, broadcast and devices that need a raw AAC stream | DVD authoring, home theatre and video production |
| Typical size | ~1.4 MB at 192 kbps per minute | ~2.9 MB at 384 kbps per minute |
| Compatibility | Most phones, browsers, smart TVs and media players. | DVD/Blu-ray players, AV receivers, smart TVs, VLC. |
| Developed by | MPEG (1997) | Dolby Laboratories (1991) |
AAC to AC3: questions
How do I convert AAC to AC3?
Open this page, add your AAC file, make sure AC3 is selected as the output format and click Convert. Your AC3 file is ready to download in seconds.
Will converting AAC to AC3 lose quality?
Converting between two lossy formats re-encodes the audio, which can add a small amount of loss. Use a bitrate at least as high as the original (384 kbps or more) to keep it transparent.
Is this AAC to AC3 converter free and safe?
Yes. It's free with no watermark or sign-up. Files are processed locally in your browser, so your audio is never uploaded or stored on our servers.
Can I convert many AAC files to AC3 at once?
Yes - add up to 5 files at a time on the free plan (unlimited with Pro), convert them all with one click and download them as a ZIP.
What is the difference between AAC and AC3?
AAC (Advanced Audio Coding (ADTS)) is a compressed (lossy) format, raw AAC audio stream. The successor to MP3 used by YouTube, iPhone and digital radio. AC3 (Dolby Digital (AC-3)) is a compressed (lossy) format: dolby Digital surround-sound audio used on DVDs, Blu-rays and TV broadcasts.
Does it work on Mac, Windows, iPhone and Android?
Yes. The AAC to AC3 converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.