什么是 WMV 文件？
针对互联网流媒体优化的 Windows 视频格式
WMV files, also known as Windows Media Video files, are a compressed video format developed by Microsoft for Internet streaming. Many videos available online are stored in the WMV format. WMV file sizes are smaller so that they are easier to transmit over broadband and mobile networks without sacrificing picture quality and audio clarity. The WMV file is one of the most common files used to store video in Windows. You may see the file when downloading video from the Internet or when someone shares a video via USB device or email. You can watch video stored in WMV files with a variety of media players. Windows Video and Media Player are popular choices since they come installed with many Windows operating systems.
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 WMV files.
WMV 文件的常见用途
- Windows 视频播放
- Windows 视频编辑
- 电子邮件视频附件
- 旧版 Web 视频
- Windows Movie Maker
- Windows Media Encoder
- Microsoft Office 录制
- 商务演示
谁会使用 WMV 文件？
在以 Windows 为主的组织中，企业培训师、IT 部门和档案管理员往往保存着大量 WMV 素材，例如 2000 年代和 2010 年代初制作的电子学习模块、屏幕录制和网络直播。在审阅较老的证据素材或存档的机构视频时，法律团队和研究人员也会遇到 WMV。
WMV 与 MP4：应该选择哪一个？
WMV 在 ASF 容器中使用 Microsoft 的专有编解码器，在 Windows 上播放最为可靠，而 MP4 是一种开放的 ISO 标准（MPEG-4 Part 14），几乎在所有现代设备和浏览器上都获得原生支持。以 H.264 或 H.265 编码的 MP4 文件在相当的比特率下通常比较老的 WMV 编码提供更好的质量。WMV 在旧版 Windows 工作流程中仍然实用；而对于分享、Web 发布和长期兼容性，MP4 是更稳妥的选择。
将 MP4 转换为文字