Chapter 6:
Menus: Audio Setup
Voice-Over
Activates and de-activates audio voice-over mixing.
Valid Settings: Off, Active
Default Setting: Off
Related Settings: Voice-Over Pgm. Level, Voice-Over Fade,
GPI-1 Function, GPI-2 Function, GPO Function
Voice-over mixing in the DPS-475/575 allows the program audio on input channel 1
to be ramped down, mixed with voice-over audio on input channel 2, and ramped
back up upon completion of the voice-over.
When Voice-Over is activated, the program audio on input channel 1 will immediately
begin ramping down to the setting of the Voice-Over Pgm. Level option. The duration
of the ramp-down is specified in the Voice-Over Fade option. The voice-over audio
on channel 2 is muted during this ramp-down. Once the ramp-down is complete, the
program audio on input channel 1 will be mixed with the voice-over audio on input
channel 2. When the Voice-Over option is later set back to Off (upon completion of
the voice-over), the voice-over audio on channel 2 is again muted, and the program
audio on input channel 1 will begin ramping back up to its original level.
Note that the gain of the voice-over audio on channel 2 will not be automatically
adjusted. It is recommended that the user adjust the gain of channel 2 using the Gain-
L and Gain-R options detailed earlier in this chapter, to compensate for the
averaging/mixing that is occuring between channels 1 and 2 during the voice-over.
The recommended gain for the voice-over audio on channel 2 is -0.5 * the value
specified in Voice-Over Pgm. Level. For example, if Voice-Over Pgm. Level is set to -
6db, it is recommended that the user set Gain-L and Gain-R for channel 2 to 3db.
Voice-over mixing may be also be triggered through GPI control. When the GPI-1
Function or GPI-2 Function options (see Chapter 12, “Menus: System Config”) are
set to Voice-Over, the unit’s audio voice-over mode will be activated by a GPI signal,
exactly as if manually enabled. Voice-over mixing remains active while the GPI
signal is present. Voice-over mixing is stopped and program audio begins ramping
back up upon release of the GPI trigger, similar to setting Voice-Over back to Off.
When the GPO Function option of the System Config menu is set to Voice-Over, a
GPI signal will be continuously output while the audio voice-over mixing is active.
This signal will NOT be output during the fade-down and ramp-up of program audio
that preceed and follow, respectively, voice-over mixing.
57
To Next Page
Loading...
