Grass Valley Xpanel Vertigo Suite v.4.8 - Manual (Page 59)

Xpanel User Manual 4-25
Building and editing panels
Voice Over Level
&
Voice Over Graph
The V OICE O VER L EVEL object produces a slider or an Up Down box that
allows operators to set either the preset value for the voice over and duck
level for the background (program) audio.
Voice overs adjust the combined levels of the background audio and
incoming voice-over so the audio level does not exceed the original
background volume. The diagram shows how the duck and voice over
presets adjust the actual audio levels.
You must instantiate the Voice Over Level object by selecting either D UCK
L EVEL or P RESET L EVEL from the object’s L EVEL TYPE property. The duck
value is the amount by which the background audio level is attenuated
when the voice over is fully on. The voice over preset value is the level of
the voice over audio when the voice-over is fully on. Both values are given
in decibels from -99.5 dB to +28.0 dB.
The Voice Over Level object’s S LIDER A PPEARANCE property determines if
the control is a slider (T RUE ) or an Up Down box (F ALSE ). If the S LIDER
A PPEARANCE property is set to T RUE , the O RIENTATION property
determines whether the slider is horizontal or vertical.
Adding a V OICE O VER G RAPH object to the panel provides operators with a
visual representation of the preset and duck levels. Since the Voice Over
Graph is a read-only control, it must be used with Voice Over Level
objects.
Audio objects Description
Background Audio
Voice Over Audio
Preset Level
Duck Level