Hauppauge WinTV USB - Manual (Page 27)

Creating Digital Video movies with
WinTV-USB
Overview of Video Clip Capture
Live video which is digitized by the video digitizer (see “How WinTV USB
works”) can be “captured” as a video sequence (or “video clip”) by using the
WinTV Capture program. This program is provided in the WinTV Application and
uses Microsoft’s WDM for Windows capability which is built into Windows 98
and 2000.
WinTV-Capture creates a file type called AVI (Audio/Video Interleaved) on your
hard disk. This file contains digitized video and, optionally, audio.
WinTV USB gives high quality captured video by storing uncompressed digi-
tized video in an AVI file. This compares with compression methods such as
JPEG and MPEG, where some loss of video quality is accepted in order to
reduce the amount of data stored. Uncompressed video capture creates high
quality digital video movies, but requires optimized system performance to
avoid lost video frames (called “dropped frames”.)
To create the best quality digital videos, use the following steps:
• Compress/Edit, etc. by using the appropriate 3rd party software with these
functions
• Edit the raw video. Add special effects, cut, paste, etc. using one of the
popular digital video editing programs such as Adobe Premiere, MGI
VideoWave or U-Lead MediaStudio.
• After editing the video, compress the video for the playback target. For
example, if you are creating a video to be used in a multimedia presenta-
tion, compress with either Intel’s Indeo or Supermac’s Cinepak. If you are
creating a CD-Video, use MPEG compression to get up to 74 minutes of
video on a CD-ROM.
3-1