TTA vs AU — Comparison & Free Converter
Fast, instant TTA to AU conversion. No signup required. Just drop your .tta file and get .au in seconds.
Batch Settings
お気に入りのアニメやドラマのサウンドトラック、あるいは大切なビジネス会議の音声記録。TTA形式で保存されたこれらの音源を、幅広い環境で再生可能なAU形式へ変換したいとお考えではありませんか？特に、日本の多種多様なオーディオ機器やソフトウェアでは、AU形式がよりスムーズに扱える場面が少なくありません。当社の変換ツールは、音質の劣化を最小限に抑えつつ、簡単かつ迅速にファイル形式を変換できるよう設計されています。複雑な設定は一切不要。どなたでも直感的にご利用いただけます。大切な音源を、より多くの場所で、より手軽にお楽しみいただくために、ぜひ当社のTTAからAUへの変換サービスをご活用ください。
- ウェブサイトでの音声公開
- 旧式オーディオ機器での再生
- 教育コンテンツの配布
日本では、一部の専門的な音声編集ソフトウェアや、特定の学術・研究機関でAU形式が未だ利用されることがあり、TTA音源をこれらの環境で扱う際の互換性確保に役立ちます。
About TTA to AU Conversion
TTA or AU — which format should you use? The answer depends on your needs. Here's a quick breakdown.
TTA is a widely used file format. It has common platform support. AU is a widely used file format. It has common platform support.
So when should you convert TTA to AU? This conversion is ideal when you When you need a AU file. This conversion helps you convert between formats quickly.
Converting TTA 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 .tta 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 TTA to AU
- 1
Choose your TTA file
Upload your .tta 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 TTA to AU
Your TTA file is decoded and re-encoded as AU.
Your TTA 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
TTA
.tta file
| Extension | .tta |
| MIME Type | audio/x-tta |
| Category | Audio |
AU
.au file
| Extension | .au |
| MIME Type | audio/basic |
| Category | Audio |
Should You Convert TTA to AU?
When to Convert
- ✓When you need a AU file
Frequently Asked Questions
Should I use TTA or AU?
It depends on your goal. TTA 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 TTA?
Not necessarily. Converting TTA 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 TTA 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 TTA 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 TTA 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.