Convert M4P to Opus Online — Free
Fast, free M4P to Opus converter. No registration required.
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如何转换
Upload your .m4p file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .opus file when it's ready.
什么是 M4P？
M4P is the iTunes Protected AAC format, used by Apple for DRM-protected music purchased from the iTunes Store before 2009. It uses the MPEG-4 Audio container with Apple FairPlay encryption wrapping AAC-encoded audio. Unprotected M4P files (after DRM removal) can be converted to standard audio formats.
格式详情
- 全称
- iTunes Protected AAC
- 扩展名
- .m4p
主要特点
- AAC audio codec
- FairPlay DRM wrapper
- MPEG-4 container
- iTunes metadata support
什么是 Opus？
Opus is a modern audio codec designed for interactive speech and audio transmission. It provides excellent quality at low bitrates and is widely used in VoIP and streaming.
格式详情
- 全称
- Opus Audio Codec
- 扩展名
- .opus
主要特点
- Low latency
- Excellent compression
- Voice optimized
- Open source
M4P 与 Opus 对比
| 特性 | M4P | Opus |
|---|---|---|
| 全称 | iTunes Protected AAC | Opus Audio Codec |
| 扩展名 | .m4p | .opus |
| 最适合 | AAC audio codec | Low latency |