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7800/7700 MultiFrame Manual
7812UDXD Series 3G/HD Up/Down/Cross Converter with Simultaneous Dual Format Outputs and AES I/O
6.43.1.2. Output Scaling Mode
This controls whether the down mix matrix is normalized or not. Select Overflow Scaling from the drop
down menu to normalize the matrix coefficients. Normalization of matrix coefficients will avoid any
possibility of overflow, but it tends to lower the loudness level when compared against the original 5.1
input. If no normalization is applied, the stereo down-mix usually sounds at similar levels as the 5.1 audio
input, but clipping may occur when the input sound level is close to 0dBFS. The Output Scaling Mode
drop down provides the following options:
No Scaling
Overflow Scaling
6.43.1.3. Output Gain
This control enables the user to configure the output gain. To adjust the Output Gain control, drag the
slider right to increase the gain value or drag the slider left to decrease the gain control. The Output
Gain ranges from -20 dB to +20 dB in 0.1 dB increments.
6.43.1.4. LFE Mixing Control
This control enables the user to control whether the LFE channel is included or not in the audio down-
mixing. Note that the LFE Gain control is in effect only when LFE Gain is selected. The LFE Mixing
Control drop down menu provides the following options:
No Mixing
LFE Gain
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If no normalization is applied, the stereo down-mix usually sounds at the
similar levels as the 5.1 audio input, but clipping may occur when input sound
level is close to 0dB FS.
Select Overflow Scaling to normalize the matrix coefficients. Normalization of
matrix coefficients will avoid any possibility of overflow, but it tends to lower
the loudness level when compared against the original 5.1 input.
The LFE channel will not be included in the down-mix.
The LFE channel will be included in the down-mix with gain for the LFE
channel defined by the LFE Gain control.
Revision 1.1.1
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