AU to VOX for Audio Workflows
Fast, instant AU to VOX conversion. No signup required. Just drop your .au file and get .vox in seconds.
Batch Settings
音声ファイルの変換は、今日のデジタル環境において多岐にわたるニーズに応える重要なプロセスです。特に、AU形式からVOX形式への変換は、特定の機器やシステムでの互換性を確保する上で不可欠となります。本ページでは、AUファイルの持つ豊かな音響情報をVOX形式へと最適に変換し、お客様のビジネスやクリエイティブな活動を円滑に進めるための一助となることを目指します。複雑な設定は不要で、直感的かつ迅速に高品質な変換を実現。大切な音声データを安全かつ効率的に、必要な形式でご活用いただけるよう、心を込めてサポートいたします。日本のユーザー様特有の細やかな要望にも対応できるよう、使いやすさを追求したサービス設計となっております。
- 古いビジネス電話システムの音声ガイダンス更新
- アニメ・漫画コンテンツの多言語音声トラック調整
- 縦書き表示アプリでの音声ナレーション同期
AUからVOXへの変換は、特にレガシーなPBXシステムや、一部の国産特定用途向け機器でVOX形式が推奨される場合に重宝されます。日本語特有の音声処理においては、サンプリングレートやビット深度の選択が、クリアな発音を保つ上で重要となります。
About AU to VOX 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 VOX 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 .vox. VOX is a widely used file format. Rather than searching for desktop software or wrestling with command-line tools, you can convert AU to VOX online in seconds with CocoConvert.
This conversion is ideal when you When you need a VOX file. The conversion helps you convert between formats quickly.
Converting AU to VOX 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 VOX
- 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 VOX
Pick VOX from the format list. The converter automatically tunes settings for the AU→VOX 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 .vox 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 VOX
Your AU file is decoded and re-encoded as VOX.
Your AU file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in VOX format
The converted file is ready for download
Format Comparison
AU
.au file
| Extension | .au |
| MIME Type | audio/basic |
| Category | Audio |
VOX
.vox file
| Extension | .vox |
| MIME Type | audio/x-vox |
| Category | Audio |
Should You Convert AU to VOX?
When to Convert
- ✓When you need a VOX file
Frequently Asked Questions
Who needs to convert AU to VOX?
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 VOX without losing quality?
Converting AU to VOX maintains high quality with CocoConvert's optimised encoder settings.
Do I need to install software to convert AU to VOX?
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 VOX 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 VOX.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.