Win8 system entertainment first

Computer Store News Microsoft is committed to bringing more excellent video/audio enjoyment to users in Win8. In the official blog of Building Windows8, Scott Manchester, project manager of Microsoft Media Platform and Technical Team, writes a detailed explanation. Microsoft's development work behind improvements in music and video playback. In many cases, these improvements made by Microsoft will increase battery life or improve performance. For example, audio data will be processed in batches/blocks. This mechanism will improve CPU performance and save battery. Microsoft Win8 introduces a better bit rate system, the initial video stream will use a lower rate during video buffering, and Win8 will also adopt a new content mixing system.

In most cases, the priority video playback from the app in Windows is in the foreground, and the video stream will slow down when the user moves the app to the background. In fact, when the music playback is placed in the background, it can still be played to the maximum volume.

The figure below shows a comparison between the average CPU utilization of Windows 7 and Windows 8, playing a 720P VC1/H.264 video clip and camera capture preview.

CPU Video Media Utilization

Video playback and camera capture preview, Win8 CPU usage will be less than half of Win7, both fast and power-saving.