Convert AAC to AC3
Convert your AAC audio files to AC3 directly in your browser.
How to convert audio in 3 steps
Choose a AAC audio file.
Click convert to AC3.
Download your AC3 audio.
Format descriptions
AAC — AAC (Advanced Audio Coding) is a lossy audio codec that is more efficient than MP3 at the same bitrate. It is the standard for MP4 video and modern devices.
AC3 — AC3 (Dolby Digital) is the standard audio codec for DVD, Blu-ray and home theater. It supports up to 5.1 channels of surround sound.
Technical comparison: AAC vs AC3
Technical breakdown of the AAC and AC3 specifications: compression, colour, transparency and animation support.
| Property | AAC | AC3 |
|---|---|---|
| Specification | AAC (Advanced Audio Coding) | AC3 (Dolby Digital Audio Codec) |
| Media type | Audio | Audio |
| Compression | Lossy · LC / HE-AAC | Lossy · AC-3 (up to 5.1) |
| Color space / bit depth | 16-bit up to 48 kHz | 16/20/24-bit 5.1 |
| Transparency | Not applicable | Not applicable |
| Animation | No (static) | No (static) |
| Best for | AAC (Advanced Audio Coding) is a lossy audio codec that is more efficient than MP3 at the same bitrate. It is the standard for MP4 video and modern devices. | AC3 (Dolby Digital) is the standard audio codec for DVD, Blu-ray and home theater. It supports up to 5.1 channels of surround sound. |
What happens when converting AAC to AC3?
The AAC data is decoded inside your browser with WebAssembly and re-encoded to the AC3 specification, so no file is ever uploaded to a server. AC3 uses lossy compression: the file gets far lighter, but a small amount of fine detail is discarded in the process.
Frequently Asked Questions
What is audio conversion?
Audio conversion changes an audio file from one format to another, for example from AAC to AC3, while keeping the audio content.
Are my audio files uploaded?
No. This tool processes audio files directly in your browser. Your audio files are never sent to a server.
Which audio formats are supported?
This tool converts AAC audio files to AC3, all in your browser.
Is it really free and unlimited?
Yes, the tool is completely free and you can convert as many audio files as you want, with no limits.
Does it work on mobile too?
Yes, it works on any modern device, including smartphones, tablets and desktop computers.
Which format will the result be in?
The converted file will always be in AC3 format, ready to download and use.
About the audio converter
Convert AAC to AC3 audio online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
See also:
- Audio Converters
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- Convert AAC to MP3Convert AAC to MP3 audio online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
- Convert AAC to WAVConvert AAC to WAV audio online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
- Convert AAC to OGGConvert AAC to OGG audio online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.