Analog Way Octo Vue - OVP831 - Manuel (Page 20)

OCTO VUE / QUATTRO VUE
PAGE 20
Chapter 3 : OPERATING MODE
The devices can be used in two different switching modes.
• The SEAMLESS MODE, allows switching seamlessly, fading* and titling* between the “reference” COMPUTER input
and the others inputs. These ones are scaled to the same format as the “reference” COMPUTER format.
NOTE: The inputs, which can be used as the “reference” Computer input, are the Input # 1 and # 8.
NOTE: The “reference” Computer is not scaled.
• The FAST SWITCHING MODE allows selecting an output format corresponding to your application. All video inputs
are scaled to the selected format. The switching between two inputs will go through a fade colored transition. The output
rate can be selected between 60 Hz, 75 Hz or can be synchronized onto one of the video input frame rate in order to
improve the motion picture. In this case, the output frame rate will be 50 Hz if the input is in PAL or SECAM, and 59.94
Hz if the input is in NTSC.
3-1. SETTINGS
We recommend resetting the device to all of its default values, with the LCD menu (CONTROL > Default value
> yes) before proceeding.
Select a switching mode with the LCD menu (SWITCHING > fast switching or seamless). Please see the
Switching mode table below.
Select the Auto settings function with the LCD menu (INPUT > Auto settings). This function will detect
automatically the source type connected to the inputs of the device. Sometimes, the auto setting may not detect the
source type: in this case select manually the source type with the LCD menu (INPUT > Input type).
If you have selected the fast switching mode: select one of the output formats with the LCD menu (OUTPUT >
output format).
NOTE: For fixed pixels display device (DMD, LCD, PLASMA…), always select the output format corresponding
to the native resolution of your display device. Thus, the display device will not have to scale the image and
the result will be better.
NOTE: In SEAMLESS mode, the output format is the same as the “reference” computer format.
SWITCHING MODE TABLE
FAST SWITCHING
SWITCHING MODE
internal rate “input # x”
SEAMLESS
TRANSITION All switching with a fade color,
a fade frame* or a clean cut. All switching with a fade color, a
fade frame* or a clean cut. • Seamless or fading* transition
between the “reference” computer
and all the inputs.
• All other switching with a fade
color, a fade frame* or a clean cut.
OUTPUT FRAME
RATE Generated by the device (60 Hz
or 75 Hz). Synchronized on the selected input
frame rate (50 Hz if PAL or SECAM
and 59.94 Hz if NTSC). Synchronized on the “reference”
Computer frame rate (input # 1 or
input # 8).
* OVX831, OVF831 & QVX421.