Grass Valley Maestro Master Control v.2.4.0 - Manual (Page 93)

89 MAESTRO User Manual
Section 2 — The Maestro Configuration Editor
Embedded Audio Options
Choices embedded audio are:
• Embed (default)
• Pass Through
This menu choice will allow you to decide whether to embed the audio pro-
cessed in the Maestro Processor or just pass through the embedded audio
that comes in with the video sources. Most users will prefer to re-embed the
audio created in the processor as otherwise the fading/mixing/gain
control functions of Maestro will not appear on the video outputs.
One possible reason for using pass through is when you do not want any
changes to the audio signals at all (this is not common). In Pass Through
mode embedded audio will be switched simultaneously with the video.
VU Meter Reference Level
Choices range from -12 dBFS to -24 dBFS in 1 dBFS increments.
Default: -20 dBFS.
This option selects the reference level that results in a "0" VU reading on the
meters. The default is -20 dBFS which corresponds to the SMPTE recom-
mended practice and is usually used in the United States. Another com-
monly used value is -18 dBFS which is used in some European countries.
PPM Meter Reference Level
Choices range from -12 dBFS to -24 dBFS in 1 dBFS increments.
Default: -20 dBFS.
This option selects the reference level that results in a mid-scale or reference
reading on the PPM meters. The default is -20 dBFS which corresponds to
the SMPTE recommended practice and is usually used in the United States.
Another commonly used value is -18 dBFS.
Default Mix-Over Ratio
Choices range from 0 dB to -24 dB in 1 dB increments.
Default: -12 dB.
This option selects the mix-over ratio for an audio mix-over. This value
defaults to -12 dB, which means the background audio will drop by the
selected value (-12 dB for the default value) when a mix-over is enabled.
This value applies to all mix-overs and is the default when a mix over-
source is assigned to a mixer.
Note A 0 dB mix-over means that both the background and mix-over source will
be mixed together at full level.