AU to WAV for Audio Workflows
Fast, instant AU to WAV conversion. No signup required. Just drop your .au file and get .wav in seconds.
Batch Settings
お気に入りの漫画のオーディオブックを聴いていて、急にファイル形式の壁にぶつかった経験はありませんか？あるいは、ビジネスの重要な音声ファイルを、より汎用性の高い形式に変換したいとお考えかもしれません。AU形式は、かつては特定の環境で重宝されましたが、現代の多様なデバイスやソフトウェアでは、再生に一手間かかることが少なくありません。そこで、AUファイルをWAV形式へ変換する出番です。WAVは、音質の劣化が少なく、ほとんどのOSやメディアプレーヤーでスムーズに再生できるため、大切な音源を安心して扱えます。まるで、時代を超えて愛される職人の技が、最新の技術と出会うようなものです。この変換ツールが、皆様のデジタルライフをより快適に、そして豊かなものにするお手伝いができれば幸いです。
- オーディオブックのデバイス間互換性向上
- ビジネス会議録の汎用形式化
- 同人音声作品の配布形式統一
日本では、特に古い音声データや専門的な音響機器からの出力にAU形式が用いられることがありますが、一般的な普及度は低く、WAVへの変換はデータ活用の幅を大きく広げます。
About AU to WAV 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 WAV 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 .wav. WAV is uncompressed PCM audio — studio quality with no data loss, but large file sizes. Rather than searching for desktop software or wrestling with command-line tools, you can convert AU to WAV online in seconds with CocoConvert.
This conversion is ideal when you When you need a WAV file. The conversion helps you convert between formats quickly.
Converting AU to WAV 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 WAV
- 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 WAV
Pick WAV from the format list. The converter automatically tunes settings for the AU→WAV 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 .wav 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 WAV
Your AU file is decoded and re-encoded as WAV.
Your AU file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in WAV format
The converted file is ready for download
Format Comparison
AU
.au file
| Extension | .au |
| MIME Type | audio/basic |
| Category | Audio |
WAV
.wav file
| Extension | .wav |
| MIME Type | audio/wav |
| Category | Audio |
Should You Convert AU to WAV?
When to Convert
- ✓When you need a WAV file
Frequently Asked Questions
Who needs to convert AU to WAV?
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 WAV without losing quality?
Converting AU to WAV maintains high quality with CocoConvert's optimised encoder settings.
Do I need to install software to convert AU to WAV?
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 WAV 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 WAV.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.