Audio Conversion
Convert AIFF to AU Online — Free
Fast, free AIFF to AU converter. No registration required.
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200万以上のファイル変換
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処理後にファイルを自動削除
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すぐに変換を開始
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変換方法
1
Upload your .aiff file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .au file when it's ready.
AIFFとは？
AIFF is an uncompressed audio format developed by Apple. Like WAV, it provides perfect audio quality but results in large file sizes.
形式の詳細
- 正式名称
- Audio Interchange File Format
- 拡張子
- .aiff
主な特徴
- Lossless quality
- Apple standard
- Professional audio
- No compression
AUとは？
AU is an audio format created by Sun Microsystems. It's one of the oldest digital audio formats, commonly used on Unix and Java platforms.
形式の詳細
- 正式名称
- Sun Microsystems Audio
- 拡張子
- .au
主な特徴
- Unix standard
- Java audio
- Simple format
- Legacy support
AIFFとAUの比較
| 特徴 | AIFF | AU |
|---|---|---|
| 正式名称 | Audio Interchange File Format | Sun Microsystems Audio |
| 拡張子 | .aiff | .au |
| 最適な用途 | Lossless quality | Unix standard |
よくある質問
Converting between lossless formats preserves perfect quality. When converting to lossy formats, our optimized encoding minimizes any audible difference. You can adjust bitrate to control quality vs. file size.
We preserve ID3 tags, album art, and metadata when both AIFF and AU support them. Some metadata may not transfer between incompatible formats.
Pro users can batch convert multiple audio files simultaneously. Free users convert one file at a time with up to 5 free conversions per day.
We support all standard sample rates from 8kHz (voice) up to 192kHz (studio quality). The default preserves your source file's sample rate.
Yes. Our audio converter handles music, podcasts, voice memos, and audiobook files. For podcasts, we recommend MP3 at 128-192kbps for the best balance of quality and file size.