Apple MainStage User Manual download pdf (Page 16)

16 Chapter 2 Setting Up Your System

Some devices feature buttons that send program change messages. You can use these

buttons to send program change messages to MainStage, but you cannot assign them

to control other parameters using MainStage screen controls.

Choosing a Controller Preset

Some keyboard controllers allow you to choose different presets or “scenes” that

reconfigure the messages sent by the controls on the device. In most cases, you should

choose a generic preset that sends standard MIDI messages rather than system

exclusive messages or messages intended for a particular application. After you have

assigned hardware controls to screen controls in MainStage, do not change the preset

on the MIDI device, or your assignments might be lost.

In some cases, you can change the message type the controller sends by choosing a

different preset or by reprogramming the device. Some devices may include software

that you can use to reprogram knobs, buttons, and other controls. For information

about reprogramming a MIDI device, see the documentation that came with the

device.

Using Audio Devices With MainStage

MainStage works with Core Audio-compliant audio devices, including FireWire, USB,

and PCI audio interfaces. For more information about using audio devices, see the

“Setting Up Your System” chapter in the Logic Pro 8 User Manual.

MainStage can require a large amount of available RAM, particularly when playing

sample-based software instruments. It is recommended that you test your system and

the concerts you plan to use before you perform using MainStage to make sure there is

enough available memory to play and switch between patches without causing audio

drop-outs or distortion. Unlike in Logic Pro 8, you can choose different audio input and

output drivers in MainStage. For more information about choosing audio drivers, see

“Setting MainStage Preferences” on page 97.

Using Effects Plug-ins With MainStage

You can use many of the Logic Studio effects plug-ins in MainStage channel strips.

Some Logic Studio plug-ins, including surround plug-ins and those causing noticeable

latency, are not available in MainStage. For more information about the included

effects plug-ins, refer to the Logic Studio Instruments and Effects manual. You can also

use Apple and third-party Audio Units effects in MainStage channel strips in the same

way you use them in Logic Pro 8 channel strips.

Some Audio Units plug-ins can introduce latency. Using effects that introduce latency,

such as compressors and limiters, can produce undesirable or unpredictable results

during live performance.

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Apple MainStage User Manual Page 16