AJA FS1-X Manual - Manual (Page 85)

FS1-X v1.1 www.aja.com 85
22.0/23.0/24.0
HDMI Level, Phase,
Delay
Same controls as SDI, except can be applied to 8 individual audio inputs, or 4 channel
pairs. See descriptions for SDI 1:
• “1.0 SDI1 Level” on page 82
• “2.0 SDI1 Phase” on page 83
• “3.0 SDI1 Delay” on page 83
25.0/26.0/27.0
Analog Level,
Phase, Delay
Same controls as SDI, except can be applied to 8 individual audio inputs, or 4 channel
pairs. See descriptions for SDI 1:
• “1.0 SDI1 Level” on page 82
• “2.0 SDI1 Phase” on page 83
• “3.0 SDI1 Delay” on page 83
28.0 Mix Down 1
Mode
This parameter activates the Mix Down 1 mixer, and selects either 5.1 or 7.1 mix down
mode for that mixer.
When set to 5.1 or 7.1 Channel Mode, additional menus follow that are used to select the
source of the incoming multi-channel audio, adjust the levels of each of the incoming
channels to the Left and Right outputs, and adjust the gain of the Left and Right output
channels.
About Mix Down Mode Multi-channel audio uses more than two speakers to represent the sound field.
Figure 13. Multi-Channel 5.1 and 7.1 Speaker Positions
Multi-channel audio, typically embedded in an SDI or HDMI signal, can be passed
through the FS1-X converter unchanged. The multi-channel sound can also be mixed
down to stereo, using the two Mix Down Modules built into the FSI-X audio processor.
The default FS1-X 5.1 to 2 ch. mix-down equation is:
Left Ch Output = LF + (-3dB * CTR) + (-3dB * LR)
Right Ch Output = RF + (-3dB * CTR) + (-3dB * RR)
The default FS1-X 7.1 to 2 ch. mix-down equation is:
Off (default)
5.1 Channel
7.1 Channel Mix down feature is turned off.
Selects 5.1 mix down mode.
Selects 7.1 mix down mode.
5.1 Speaker Positions
RR
Right
Rear
LR
Left
Rear
RF
Right
Front
CTR
Center
LF
Left
Front
Listener
7.1 Speaker Positions
RR
Right
Rear
LR
Left
Rear
RS
Right
Surround
LS
Left
Surround
RF
Right
Front
CTR
Center
LF
Left
Front
Listener