Convert M4A to M4P Online — Free
Fast, free M4A to M4P converter. No registration required.
200万+文件已转换
数千用户的信赖之选
安全传输
HTTPS 加密上传
隐私优先
文件处理后自动删除
无需注册
即刻开始转换
随处可用
任何浏览器，任何设备
如何转换
Upload your .m4a 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 .m4p file when it's ready.
什么是 M4A？
M4A is an audio-only MPEG-4 container, commonly using AAC encoding. It provides better quality than MP3 at similar file sizes.
格式详情
- 全称
- MPEG-4 Audio
- 扩展名
- .m4a
主要特点
- Better than MP3
- Apple ecosystem
- AAC encoding
- Metadata support
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
M4A 与 M4P 对比
| 特性 | M4A | M4P |
|---|---|---|
| 全称 | MPEG-4 Audio | iTunes Protected AAC |
| 扩展名 | .m4a | .m4p |
| 最适合 | Better than MP3 | AAC audio codec |