Grass Valley Media Conversion - Manual (Page 90)

Audio Builder 2 Media Conversion Software
Page 90 Miranda Technologies Ltd
Compatibility Issues
If the PC does not have a sound card with multiple outputs then sound card
driver may down-mix to a stereo output. Normally when this happens the
other channels are played back at a reduced volume (you may not be able to
hear them). If you have two sound cards installed, the volume control will
only alter the volume on first sound card it finds. If this is a problem it is
recommend that you disable the sound card that you are not using.
Previewing using Dolby Digital
Some sound cards support encoding their multi-channel output to a Dolby
digital signal. Below is screen shot of an NVIDIA sound card, which does
not support Dolby Digital output (the option is greyed out).
Multi-Channel Playback on Imagestore 300/HD
How each channel gets mapped to groups within the embedded output or the
AES outputs is down to the mix-file within the Imagestore. Audio Builder
has no way of configuring the mix-file it just lays the channels out in a
numbered list 1-8. Also the Meta data contained within the OXE file is
unused by the Imagestore.