MPEG-1 Audio Layer II
MPEG-1 Audio Layer II(有时简称MP2)是ISO/IEC 11172-3(MPEG-1音频部份)中订立之有损性音频压缩格式。此标准还制订了MP1和MP3。个人电脑和互联网音乐流行MP3,MP2则多用于广播。
技术规格
定义于ISO/IEC 11172-3
ISO/IEC 13818-3定义了用于MPEG-2 Layer II之延伸部份
- 额外采样率: 16, 22.05及24 kHz
- 额外比特率: 8, 16, 24, 40及144 kbit/s
- 多声道 - 最多五个全频声道及一个超低音声道
应用
PAL地区出售之DVD-Video播放机需内置立体声MP2解码器,NTSC地区则不需要。
Video CD及Super Video CD之标准音轨(SVCD另支持5.1多声道〔MPEG Multichannel〕)。
HDV摄录机音轨。
另见
- MPEG-1
- MPEG-1 Audio Layer I
- MPEG-1 Audio Layer III
- MPEG-2
- MP4 (容器格式)
- MPEG 基础串流
- Musepack originally MP2-based, with numerous improvements
注释
外部链接
- The history of MP3 from Fraunhofer IIS
- MPEG Audio Resources and Software
- TooLAME (页面存档备份,存于) - an MP2 encoder
- TwoLAME (页面存档备份,存于) - a fork of the tooLAME code
- RFC 3003 (页面存档备份,存于) - The document defining MIME type for MPEG-1 Audio Layer II
- A MPEG Audio Layer II decoder in 4k Source code for small open source decoder.
- Official MPEG web site
- Patent Status of MPEG-1, H.261 and MPEG-2 (页面存档备份,存于) - some informations about patents
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