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Downmixing
Downmixing is a way of previewing your surround project in stereo only. There are
various cases where surround is not available and it may be that someone plays
your project in stereo only. A radio broadcast is a good example. Downmixing is a
valuable tool for determining if your project will sound good in stereo. However,
you can export your project in stereo, and SONAR uses your downmix settings to
create your exported file.
The following table lists the downmixing settings in the Surround tab of the
Project Options dialog and gives a brief description of what the setting does. You
can also manually enter other values besides these preset ones:
Downmixing Setting Options
Center Downmix Level (dB) These options determine how much of the center is mixed to
the left and right.
• -3 dB—Maintains the same level of center channel sound
when you listen in a typically reverberant room
• -4.5 dB—a compromise level between -3dB and -6 dB
• -6 dB—Maintains the same level of center channel sound
when you listen to direct sound without typical room
reverberations
• -INF—Eliminates all of the Center channel signal
Surround Downmix Level (dB) The amount of Left Surround and Right Surround mixed into the
Left and Right channels respectively.
• -3 dB—Maintains the same level of surround
• -6 dB—Reduces the level of surround so that it doesn’t
compete with center channel sound such as dialog
• -INF—Eliminates all of the Surround channel signal
LFE Level (dB) The amount of the LFE channel mixed into the Left and Right
channels respectively.
• -12 (or type in a value)—lets you choose the level of LFE
in the stereo mix
• -INF—Eliminates all LFE
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