AU to AIF for Audio Workflows
Fast, instant AU to AIF conversion. No signup required. Just drop your .au file and get .aif in seconds.
Batch Settings
大切な音声ファイル、AU形式からAIF形式への変換でお困りではありませんか？せっかくの素晴らしいサウンドも、互換性の問題で再生できないのはもったいないですよね。当サイトでは、お客様の大切な音源を、高品質はそのままに、より幅広い環境で利用可能なAIF形式へとスムーズに変換するお手伝いをいたします。アニメやゲームのサウンドクリエイターの方々はもちろん、ビジネスシーンでのプレゼンテーション素材、あるいは個人の趣味で録音された貴重な音声記録まで、様々な用途でAIF形式の汎用性をご活用いただけます。煩雑な設定は一切不要。直感的な操作で、どなたでも簡単に変換作業を行っていただけます。音質の劣化を心配することなく、安心してご利用ください。
- アニメ制作の音声トラック変換
- ビジネス会議録音の共有
- 同人音楽のプラットフォーム対応
日本の多くのプロフェッショナルな音響制作現場では、AU形式よりもAIF形式の方が広く利用されており、プロジェクトの互換性を保つ上でこの変換は特に重要視されます。
About AU to AIF Conversion
Whether you're one of the many musicians, podcasters, and audio engineers who work with AU files daily, there comes a time when you need AIF instead. AU is a widely used file format.
Here's a typical scenario: you receive a .au file but your project, platform, or client requires .aif. AIF is a widely used file format. Rather than searching for desktop software or wrestling with command-line tools, you can convert AU to AIF online in seconds with CocoConvert.
This conversion is ideal when you When you need a AIF file. The conversion helps you convert between formats quickly.
Converting AU to AIF maintains high quality with CocoConvert's optimised encoder settings.
Behind the scenes, CocoConvert uses industry-standard tools — FFmpeg for audio and video, Sharp for images, qpdf for documents. Your file is uploaded securely (TLS encryption), processed on isolated servers in Germany, and auto-deleted within 24 hours. No account, no watermark, no hidden fees.
Power users can batch convert up to 100 files simultaneously with a Pro subscription, making it practical for production workflows.
How to Convert AU to AIF
- 1
Drop your file
Drag your .au file onto the converter. Need to process many files? Add up to 5 at once (100 for Pro).
- 2
Set output to AIF
Pick AIF from the format list. The converter automatically tunes settings for the AU→AIF pair.
- 3
Hit Convert
Processing happens server-side — your browser stays responsive. Most audio files convert in under 10 seconds.
- 4
Download and use
Your .aif file is ready to plug into your workflow. Download it or share the link (expires in 24 hours).
What Happens When You Convert AU to AIF
Your AU file is decoded and re-encoded as AIF.
Your AU file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in AIF format
The converted file is ready for download
Format Comparison
AU
.au file
| Extension | .au |
| MIME Type | audio/basic |
| Category | Audio |
AIF
.aif file
| Extension | .aif |
| MIME Type | audio/aiff |
| Category | Audio |
Should You Convert AU to AIF?
When to Convert
- ✓When you need a AIF file
Frequently Asked Questions
Who needs to convert AU to AIF?
This conversion is commonly used by musicians, podcasters, and audio engineers. Typical reasons include convert between formats quickly and ensuring compatibility with downstream tools or platforms.
Can I convert AU to AIF without losing quality?
Converting AU to AIF maintains high quality with CocoConvert's optimised encoder settings.
Do I need to install software to convert AU to AIF?
No. CocoConvert runs entirely in your browser — no downloads, no plugins. It works on macOS, Windows, Linux, iOS, and Android.
How many AU files can I convert at once?
Free users can convert up to 5 files per hour. Pro subscribers get 100 files per hour with larger size limits (5 GB per file). Business API users can integrate batch conversion directly into their tools.
Is there an API for AU to AIF conversion?
Yes. CocoConvert offers a Business API for automated conversions. It supports all the same format pairs available in the web interface, including AU to AIF.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.