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
您是否曾遇到这样的情况：手头一份AU格式的音频文件，却在某些旧设备或特定语音应用中无法顺利播放？尤其是在一些对文件格式有严格要求的场景下，比如早期的语音邮件系统或某些游戏内的语音包，将AU转换为VOX格式就显得尤为必要。VOX文件以其高效的压缩率和对低带宽环境的友好性而闻名，虽然在日常生活中不那么常见，但在特定领域仍发挥着不可替代的作用。我们的工具旨在帮助您轻松完成这一转换，确保您的音频在各种环境下都能畅通无阻，无论是老旧的对讲机系统，还是某些定制化的嵌入式设备，都能完美兼容。告别格式不兼容的烦恼，让您的音频在任何角落都能清晰传达。
- 旧款对讲机语音包制作
- 电话语音系统录音
- 特定游戏语音资产转换
在华语地区，VOX格式虽然不普及，但在一些早期的工业控制、安防监控系统以及部分嵌入式语音设备中仍有应用，转换需求多源于维护旧系统或兼容特定硬件。
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.