Apple Logic Pro 9 - Manual (Page 1143)

The Arrange channel strips contain a reduced parameter set of the corresponding channel
strip objects in the Environment. The channel strips shown in the Mixer window are more
configurable, but the only place you can access all channel strip options is the Environment
Mixer layer.
Important: If File > Project Settings > Audio > Automatic Management of Channel Strip
objects is active (it is on, by default), you cannot create channel strips in the Environment.
This setting, when active, means that use of the track and channel creation options in
the Arrange window will automatically create a corresponding channel strip object in
the Environment (and therefore, remote control channel strips in the Mixer and Inspector).
In a general music-making sense, you do not need to access the underlying channel strips
shown in the Environment. In fact, the only time you will open the Environment Mixer
layer is when you need to reconfigure channel strips at a system level, rerouting them to
different audio hardware, or perhaps to other applications.
Although channel strip objects are not part of the MIDI signal flow, they still allow MIDI
messages to control aspects of audio and software instrument playback in Logic Pro. Any
MIDI object can be cabled into a channel strip object, thereby feeding control data into
it.
Channel Strip Parameters
When you click a channel strip of any type (audio, instrument, aux, output, master, input,
or bus), the following common parameters are accessible:
Icon
Select the checkbox to make the channel strip accessible in the Arrange Track Assignment
menu (Control-click the track list).
Choose an icon for the channel strip from the menu that appears when you click the icon.
Device
Click the visible device name (Core Audio, for example) to reassign the selected channel
strips to a different hardware device.
Channel
Click the visible channel name (Audio 1, for example), and choose the channel strip type
from the submenus. This is how you can reassign a (newly created or existing) channel
strip object (an audio channel strip is the default for new objects) to other channel strip
types. You can choose from:
• Audio: The default channel strip type, used as the destination for arrange audio tracks.
• Input: Primarily used for compatibility with projects created in earlier versions of
Logic Pro Input Channel Strip .
1143 Chapter 37 Environment Objects Reference