什么是 WMA 文件？
压缩效果良好的 Windows 音频格式
WMA files (also known as Windows Media Audio files) are used mostly for music, but they can also contain spoken word audio. The WMA file format was created by Microsoft and is a proprietary file format. The audio in WMA files are compressed similar to MP3 and OGG files. However, since WMA files are a proprietary format, they aren’t fully supported by all multimedia devices.
You can sometimes find WMA and WMV (Microsoft’s Video equivalent) files using another one of Microsoft’s proprietary digital audio and video container format known as ASF. However, WMA and WMV files are more common. Microsoft Windows Media Player 9 was the last version of the Windows Media Player developed for Mac OS X. However, Mac users can use Flip4Mac WMV (also known as Microsoft Windows Media Components for QuickTime) to play WMA files. Windows Media video files use a .WMV extension.
WMA 文件的常见用途
- Windows Media Player
- 旧版音乐库
- Windows 语音录音
- Windows Media Player
- Windows 录音机
- 旧版音乐收藏
谁会使用 WMA 文件？
在 2000 年代以 Windows 作为标准的律师事务所、政府机关和呼叫中心，往往保存着大量以 WMA 保存的口述录音、通话录音和会议音频存档。在处理使用基于 Windows 的手持录音机制作的较老采访录音时，研究人员和记者也会遇到 WMA。
WMA 与 MP3：应该选择哪一个？
WMA 和 MP3 都是有损音频格式，但 WMA 是封装在 ASF 容器中的 Microsoft 专有编解码器，而 MP3 是几乎所有设备和平台都支持的开放 ISO/MPEG 标准。WMA 旨在以相当或更低的比特率提供与 MP3 相当的质量，并且历来还增加了 MP3 所缺乏的 DRM 支持等功能。当你需要为分享或播放实现最大兼容性时宜选择 MP3；WMA 大多存在于最初在 Windows 生态系统中创建的文件里。
将 MP3 转换为文字