Grass Valley iMC-Panel-100 v.7.2.9.0 - Manual (Page 152)

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Operation
Working with Audio Levels
‘Preset In’ Knob
When the panel is controlling an Imagestore 750, this knob controls the level of preset input
audio.
This knob adjusts the audio level in increments of 0.5 dB, from –100.0 dB to +28.0 dB.
‘Over Ratio/Duck Level’ Knob
Use this knob to adjust the “duck level” of program audio. (The term over ratio applies only when
the panel is controlling an MCE or MCPM.)
As a reminder, there are two levels that govern the use of voice-overs: the “duck” level and the
over level:
Both of these values are expressed in decibels (in the range –100.0 dB to +28.0 dB). This knob
adjusts the “duck level” in increments of 0.5
dB.
When no voice-over is active on the program bus, the knob is inoperative.
When one voice-over is active on the program bus, the knob controls the audio level of the
program source for the selected voice-over signal.
When both voice-overs are active on the program bus, the knob controls the level of the
program source for both voice-over signals. The effect is additive: a turn of the knob adds the
same amount to each voice-over level.
You can also change the duck level, as well as the over level, in the ‘Voice-over 1’ menu or the
‘Voice-over 2’ menu. There are separate duck levels and over levels for each VO.
Menus
There are 5 menus for working with audio levels:
• Program input audio and preset input audio — the Imagestore 750’s audio inputs.
• Program output audio — the Imagestore 750’s audio outputs.
• Voice-over audio (1 and 2) — the Imagestore 750’s voice-over inputs.
The menus all function the same way, although they affect different parts of the Imagestore 750.
S The program and preset audio inputs apply individually to main sources. You can save and
restore audio settings for each source.
Over Level
Duck Level
Main Source Audio
Over Audio