Apple Logic Express 7 - Manual (Page 217)

Chapter 6 Logic’s Mixing Facilities 217
Effects such as reverb and delay are generally used as bus inserts. These Bus Objects
are usually addressed with the send knobs of the audio channels, and act as effect
returns.
These busses are routed to an Output Object.
In the default song, the pre-set Bus Objects have been named “Returns”.
The Bus Object features the following elements (see “Elements of the Audio Object” on
page 196): Inserts, Automation, Pan, Level, and Level meter, Mute, Stereo/Mono.
Auxiliary Object
The native Aux Object can be either mono or stereo. Aux input sources will appear as
either stereo pairs, or single mono channels, dependent on the mono/stereo status of
the Aux channel. It is possible to use the same input source for several Aux channels.
Aux channels process audio signals non-destructively, in real time. Two Aux channels
are pre-configured in a new song, by default. As with all other Audio Objects,
additional Aux Objects can be created, and accessed, via the Audio layer of the
Environment. Aux Objects are automatically made available as needed, in the Cha pull-
down menu of the Object parameter box. When four Aux Objects are in use, a fifth is
offered in the pull-down menu, when using six Auxes, a seventh is added and so on.
This makes it possible to create up to 8 Aux channels in the Environment.
The input source of an Aux channel is selected with the input assignment pop-up
menu. Possible input sources are: All software instrument outputs provided by
Instrument plug-ins (Logic or AU). These additional outputs are only available to plug-
ins inserted into an instrument channel via the “Multi Channel” sub menu. Aux channel
Input sources—sent from suitable Instrument plug-ins—start from output 3.