Merging VCube, User Manual

Page: 89 / 291

Conversion and Rendering : Convert Media Files Page 89
Compression
Options depend on selected audio file format. QuickTime offers various solutions for compressing audio data.
Note: The AVI2 and QuickTime MPEG2 Media Handler support multiple audio channels in a sin-
gle file. When recording more than 2 channels in an AVI2 or QuickTime file, each channel is
treated as a separate mono channel. I.e. if you have 4 channels in VCube, they will appear as 4
mono channels in an AVI2 file. The Windows Media Player from Microsoft and the QuickTime
player from Apple will playback a 4 audio channel file into a stereo mix of the 4 mono channels.
Using video files with embedded audio decreases playback performance. For Compositions with
complex compositing, two separate Media Files (one for video, one for audio) are preferable.
If the original Media File features both video and audio, be sure to select a compatible audio/
video Media File format for the converted file in order to retrieve both video and audio once con-
version has taken place.