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Linear Acoustic upMAX 2251 User Guide
Figure 4-2 Modify Processing menu; scroll down to access Ext L/R Mix (as shown on right menu)
The Modify Processing menu is broken into four major sections, Center channel
controls, Low Frequency Effects (LFE) channel controls, Surround controls, and
Left Front/Right Front (Lf/Rf) controls. Each section has specific controls for both
the upmixer output signals (where appropriate) and for the external Mix Inputs.
Note that the upmixer controls have no effect on the external Mix Inputs, these input
are kept fully discrete from input to output. Below, each of the controls is presented
with the default setting in bold:
Center:
•
Center Width: controls how much of center channel output of the upmixer is spread
back into the Left and Right channel Main Outputs of the unit; Default 33%
•
Ext Center Mix: controls how much attenuation is applied to the discrete external Cen-
ter channel Mix Input is mixed into the Center channel Main Output; Default 0dB
LFE:
•
LCR Sum to LFE: On/Off selection; Default On (highlighted)
•
LCR Sum Level: controls how much of a 120Hz low pass filtered sum of the Left, Cen-
ter, and Right outputs of the upmixer is fed to the LFE channel Main Output; Default -
10dB
•
Ext LFE Mix: controls how much attenuation is applied to the discrete external LFE
channel Mix Input is mixed into the Center channel Main Output; Default 0dB
20
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