Pass-through mixfiles, Program output meter tracking, Voice-over preview meter tracking – Grass Valley Imagestore 750 v.2.0.1 User Manual
Page 297: 12 channel pass-through, Group sensitive previewing, 16chn_emb_pass.mix

Imagestore 750 User Manual
Standard Mixfiles
Miranda Technologies Inc.
Page 297
Program output meter tracking
Program output meters 5-8 track the master output level.
Voice-over preview meter tracking
Voice-over input previewing tracks the gain applied to the voice-over inputs
without the voice-over being on-air.
12 channel pass-through
Embedded audio on groups 2-4 passes through to output groups 2-4
regardless of which input group is active for the AB mix.
Group sensitive previewing
As the active group changes within the audio engine, the input previews track
to display the correct inputs.
Note:
Due to the way these are implemented within the mixfile
interface these features only apply to is2/3 emulation mixfiles.
Pass-through Mixfiles
These mixfiles are intended for use in situations where all audio is being
processed externally to the Imagestore. All 16 channels of audio within the
SDI stream are routed via the delay banks so that audio is synchronised with
video if the Imagestore is providing DVE effects. A separate delay bank is
used for each audio group.
16chn_emb_pass.mix
This mixfile is designed for 16 channel embedded pass-through. It collects
audio from the A input and outputs it to program, preview and meters 1-16.
No gain modification, mutes, shuffles or any form of audio stream
manipulation is possible before audio is re-embedded to the output – (other
than the delay adjustment to synchronise with video DVE).