AIF vs AU — Comparison & Free Converter
Fast, instant AIF to AU conversion. No signup required. Just drop your .aif file and get .au in seconds.
Batch Settings
还在为音频格式不兼容而烦恼吗？无论是从Mac里导出的AIF音乐文件，还是游戏开发中常用的音效素材，当需要跨平台分享、在旧设备上播放，或是上传到一些国内流行的社交媒体和游戏平台时，AIF格式偶尔会遇到“水土不服”的问题。AU作为一种历史悠久、兼容性极佳的音频格式，其在多种操作系统和播放器上都有着良好的表现。将AIF转换为AU，不仅能有效解决兼容性难题，还能确保音频文件在不同设备间流畅传输，甚至在带宽有限的环境下也能快速加载。我们的在线转换工具，操作简单，一键直达，让您的AIF音频轻松变身AU，无论是分享给微信好友，还是用于游戏项目，都能畅通无阻。
- 微信分享游戏音效
- 老旧播放器兼容
- 网页端背景音乐
在中国大陆及周边地区，虽然AU格式不像MP3那样普及，但在特定专业领域和老旧系统兼容上仍有其独特优势，尤其是在一些对文件大小和兼容性有特别要求的场景。
About AIF to AU Conversion
AIF or AU — which format should you use? The answer depends on your needs. Here's a quick breakdown.
AIF is a widely used file format. It has common platform support. AU is a widely used file format. It has common platform support.
So when should you convert AIF to AU? This conversion is ideal when you When you need a AU file. This conversion helps you convert between formats quickly.
Converting AIF to AU maintains high quality with CocoConvert's optimised encoder settings.
If you've decided AU is the right choice, CocoConvert makes the conversion effortless. Upload your .aif file, pick AU, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert AIF to AU
- 1
Choose your AIF file
Upload your .aif file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to AU
Select .au from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large audio files.
- 4
Get your AU file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert AIF to AU
Your AIF file is decoded and re-encoded as AU.
Your AIF file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in AU format
The converted file is ready for download
Format Comparison
AIF
.aif file
| Extension | .aif |
| MIME Type | audio/aiff |
| Category | Audio |
AU
.au file
| Extension | .au |
| MIME Type | audio/basic |
| Category | Audio |
Should You Convert AIF to AU?
When to Convert
- ✓When you need a AU file
Frequently Asked Questions
Should I use AIF or AU?
It depends on your goal. AIF preserves full quality. AU preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is AU higher quality than AIF?
Not necessarily. Converting AIF to AU maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert AIF to AU on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for AIF to AU?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for AIF to AU?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.