AIFF vs AU — Comparison & Free Converter
Fast, instant AIFF to AU conversion. No signup required. Just drop your .aiff file and get .au in seconds.
Batch Settings
En el dinámico mundo del audio digital, la compatibilidad entre formatos es clave para que su contenido llegue a todas partes. Si se encuentra con archivos AIFF y necesita convertirlos al formato AU, ya sea por exigencias de un sistema específico o para garantizar una reproducción sin inconvenientes en plataformas determinadas, ha llegado al lugar indicado. Entendemos que la calidad del sonido es primordial y que cada byte cuenta. Nuestra herramienta está diseñada para facilitar esta transición, asegurando que sus grabaciones, música o materiales educativos mantengan su fidelidad sonora. Olvídese de complicaciones técnicas y concentre su energía en lo importante: el mensaje que desea transmitir con un audio impecable. La conversión de AIFF a AU, un proceso sencillo y eficiente, está ahora a su alcance.
- Archivado en sistemas UNIX/Solaris
- Compatibilidad con software educativo obsoleto
- Proyectos de audio para estaciones de radio comunitarias
En algunas instituciones académicas y gubernamentales de la región, especialmente aquellas con infraestructura tecnológica más antigua, el formato AU todavía se utiliza para audios de voz o grabaciones de baja fidelidad debido a su simplicidad y menor tamaño de archivo.
About AIFF to AU Conversion
AIFF or AU — which format should you use? The answer depends on your needs. Here's a quick breakdown.
AIFF is Apple's uncompressed audio format — equivalent to WAV in quality. It has mostly universal platform support. AU is a widely used file format. It has common platform support.
So when should you convert AIFF to AU? This conversion is ideal when you When you need a AU file. This conversion helps you convert between formats quickly.
Converting AIFF to AU maintains high quality with CocoConvert's optimised encoder settings.
If you've decided AU is the right choice, CocoConvert makes the conversion effortless. Upload your .aiff file, pick AU, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert AIFF to AU
- 1
Choose your AIFF file
Upload your .aiff file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to AU
Select .au from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large audio files.
- 4
Get your AU file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert AIFF to AU
Your AIFF file is decoded and re-encoded as AU.
Your AIFF 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
AIFF
.aiff file
| Extension | .aiff |
| MIME Type | audio/aiff |
| Category | Audio |
AU
.au file
| Extension | .au |
| MIME Type | audio/basic |
| Category | Audio |
Should You Convert AIFF to AU?
When to Convert
- ✓When you need a AU file
Frequently Asked Questions
Should I use AIFF or AU?
It depends on your goal. AIFF preserves full quality. AU preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is AU higher quality than AIFF?
Not necessarily. Converting AIFF to AU maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert AIFF to AU on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for AIFF to AU?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for AIFF to AU?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.