Audio Conversion
Convert AAC to MP1 Online — Free
Fast, free AAC to MP1 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
どこでも動作
あらゆるブラウザ、あらゆるデバイス
変換方法
1
Upload your .aac 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 .mp1 file when it's ready.
AACとは？
AAC is an audio coding standard designed to be the successor of MP3. It provides better sound quality at similar bit rates.
形式の詳細
- 正式名称
- Advanced Audio Coding
- 拡張子
- .aac
主な特徴
- Superior to MP3
- Streaming optimized
- Wide support
- Efficient compression
MP1とは？
MP1 (MPEG Audio Layer 1) is the earliest MPEG audio compression standard. It provides CD-quality audio at higher bitrates than MP2/MP3 and is found in some legacy professional audio systems.
形式の詳細
- 正式名称
- MPEG Audio Layer 1
- 拡張子
- .mp1
主な特徴
- Early MPEG standard
- CD-quality audio
- Low complexity
- Legacy format
AACとMP1の比較
| 特徴 | AAC | MP1 |
|---|---|---|
| 正式名称 | Advanced Audio Coding | MPEG Audio Layer 1 |
| 拡張子 | .aac | .mp1 |
| 最適な用途 | Superior to MP3 | Early MPEG 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 AAC and MP1 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.