Apple Logic Pro 7 User Manual

 

    Audio Hardware and Drivers

 

Drivers

 

All audio hardware requires a driver, which acts as a communication link with the Logic 
software. To use particular hardware, its/their drivers need to be activated.

Selecting and activating a particular audio hardware device is achieved directly in 
Logic, via the 

 

 dialogs. Logic will automatically 

recognize any installed Core Audio hardware, and will use the default settings—as 
defined in the Audio MIDI Setup pane—for it. It can, however, be advantageous to 
optimize the settings for your individual hardware setup, particularly if you use more 
than one audio driver or a multi I/O card. 

In such cases, you should fine tune the audio hardware settings.

You can choose between the Core Audio, DAE, and Direct TDM panes in Logic’s Drivers 
preferences. 

 

The Core Audio pane refers to the internal audio inputs and outputs of your Mac, or 
another audio hardware device that uses Core Audio drivers. The Core Audio driver 
parameters are described in “Core Audio and Direct TDM Settings” on page 9.

 

DAE is the abbreviated form of Digidesign Audio Engine. This is the driver software for 
many Digidesign cards, and is primarily used for the operation of TDM hardware and/or 
access to their on-board DSP chips. 

The following Digidesign hardware is currently 

 

 by Logic Pro via the DAE:

 

ProTools HD Accel/HD/MIX/24/MIX

The following Digidesign hardware is 

 

 by Logic Pro via the DAE:

 

AudioMedia III, Digi001, M Box, Digi002, and 002R

You can operate these interfaces as plain audio I/O cards, through use of a Core Audio 
driver.

You will find more information on the DAE parameters in the “DAE Settings” on 
page 12.

 

To use Direct TDM (DTDM), you require any of the abovementioned TDM hardware 
from Digidesign, and the ESB TDM.

ESB TDM—included in Logic Pro—connects the DTDM native audio engine with the 
DAE.