WAV to AU for Audio Workflows
Fast, instant WAV to AU conversion. No signup required. Just drop your .wav file and get .au in seconds.
Batch Settings
WAVファイルは、その高品質な音質で広く知られていますが、時には特定の環境や古いシステムとの互換性で課題が生じることがあります。特に、ウェブ上での音声埋め込みや特定のメディアプレーヤーでは、AUフォーマットがよりスムーズに扱える場面も少なくありません。当社の変換ツールは、お客様の貴重なWAV音源の品質を損なうことなく、AU形式へと最適化します。複雑な設定は一切不要。まるで手書きの書簡が、受け取る相手に配慮された美しい活字に変わるように、お客様の音声データもまた、最適な形で届けられるよう、心を込めて変換いたします。特に、ウェブサイトの読み込み速度や、少し前の環境での再生互換性を重視される方には、この変換が新たな発見となるでしょう。
- ウェブサイトでの音声素材埋め込み
- ビジネスプレゼンテーションのBGM
- 古いOSや特定デバイスでの再生
日本では、特にウェブサイトや企業の内製システムにおいて、互換性確保のためにレガシーなフォーマットが今でも利用されることがあります。AU形式への変換は、そうした環境での確実な再生を保証する一手となり得ます。
About WAV to AU Conversion
Whether you're one of the many musicians, podcasters, and audio engineers who work with WAV files daily, there comes a time when you need AU instead. WAV is uncompressed PCM audio — studio quality with no data loss, but large file sizes.
Here's a typical scenario: you receive a .wav file but your project, platform, or client requires .au. AU is a widely used file format. Rather than searching for desktop software or wrestling with command-line tools, you can convert WAV to AU online in seconds with CocoConvert.
This conversion is ideal when you When you need a AU file. The conversion helps you convert between formats quickly.
Converting WAV to AU 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 WAV to AU
- 1
Drop your file
Drag your .wav file onto the converter. Need to process many files? Add up to 5 at once (100 for Pro).
- 2
Set output to AU
Pick AU from the format list. The converter automatically tunes settings for the WAV→AU 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 .au file is ready to plug into your workflow. Download it or share the link (expires in 24 hours).
What Happens When You Convert WAV to AU
Your WAV file is decoded and re-encoded as AU.
Your WAV 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
WAV
.wav file
| Extension | .wav |
| MIME Type | audio/wav |
| Category | Audio |
AU
.au file
| Extension | .au |
| MIME Type | audio/basic |
| Category | Audio |
Should You Convert WAV to AU?
When to Convert
- ✓When you need a AU file
Frequently Asked Questions
Who needs to convert WAV to AU?
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 WAV to AU without losing quality?
Converting WAV to AU maintains high quality with CocoConvert's optimised encoder settings.
Do I need to install software to convert WAV to AU?
No. CocoConvert runs entirely in your browser — no downloads, no plugins. It works on macOS, Windows, Linux, iOS, and Android.
How many WAV 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 WAV to AU conversion?
Yes. CocoConvert offers a Business API for automated conversions. It supports all the same format pairs available in the web interface, including WAV to AU.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.