Apple Logic Pro 9 - Manual (Page 1175)

Using the Surround Balancer
If the source is set to surround, the Surround Panner acts as a Surround Balancer control.
Source channels are passed on to their respective output channels without any
cross-panning or mixing. The pan control is represented by a single puck, which affects
the multi-channel source signal as a whole. In other words, only the relative volume
balance of the source signal is changed.
The separation parameters are not available in this Surround Panner mode.
Inserting Surround Effect Plug-ins
Logic Pro offers a number of surround effect plug-ins, and also includes surround versions
of the Sculpture and ES2 synthesizers. Your Audio Units instruments and effects may also
work in surround.
Important: The project surround format determines the surround format of plug-ins.
To insert a surround effect plug-in
1 Set the channel strip’s output to Surround.
2 Click any Insert slot, then browse to the Mono
→
Surround (on mono channels), Stereo
→
Surround (on stereo channels), or Surround version (on surround channels) of the
desired plug-in.
As an example on a stereo format channel strip, navigate to Delay > Delay Designer >
Stereo
→
5.1 (ITU 775). If the project surround format is set to 7.1 (SDDS), the Plug-in
menu of a stereo channel strip is displayed as follows: Delay > Delay Designer > Stereo
→
7.1 (SDDS).
1175 Chapter 39 Working with Surround