Logic Pro X surround overview
Logic Pro X offers extensive surround processing and mixing functions for all major surround formats.
Surround features are available when Advanced tools and additional options is selected in the Advanced preferences pane.
You can insert surround plug-ins into audio and instrument channel strips, which can be routed to surround auxes or outputs. Logic Pro X includes a number of surround and multichannel effects and instruments. See Surround effects and Multichannel effects overview.
Logic Pro X records incoming multichannel audio as interleaved multichannel files, when creating a surround project. Imported split multichannel files are converted automatically.
You can also upmix or downmix non-matching signals (mono to multi-mono, or stereo to surround, for example), allowing you to use any audio material in your surround projects. In most cases, upmixing or downmixing is automatic, but it can be performed manually, if required. See Down Mixer plug-in.
You can bounce multichannel projects as split and interleaved surround files. See Bounce surround audio files.
Logic Pro X does not encode or decode surround files. You can use the Compressor application, available in the Mac App Store, to encode surround files.
To work with surround in Logic Pro X, you need an audio interface that has the number of output channels required by the chosen surround format; for example, six outputs if the 5.1 surround format is used. You will also need the same number of speakers (and appropriate amplification) to hear the channels when mixing. See Surround formats overview.