10.6

Table Of Contents
120Logic Pro User Guide
All digital audio interfaces can be susceptible to latency—a noticeable delay between the
time the audio signal is produced, and when you hear it. You should always attach your
audio interface directly to the computer, rather than through a hub, or daisy-chaining
it through another device. Doing so can cause an unacceptable amount of latency,
particularly with slower USB1.1 devices.
Connect an audio interface to your computer
Do one of the following:
Connect an audio interface to your computers Thunderbolt or USB port.
Connect an audio interface to a PCIe (Peripheral Component Interconnect Express)
card installed in your computer. PCIe provides extremely high bandwidth and fast data
transfer rates, allowing you to record and play back large numbers of files at the highest
possible sample rates and bit depths.
After connecting an audio interface to your computer, be sure to set the audio interface as
your audio input. You can then set the individual inputs on the audio interface as the input
source for the audio tracks you want to record to. For details on choosing the audio input,
see Devices preferences in Logic Pro.
Connect speakers to a computer running Logic Pro
You can connect speakers or monitors to your computer to hear your projects with better
audio quality. A variety of speakers is available that you can connect to your computer
or audio interface. The way you connect them depends on your system and the type of
speakers you use.
Surround projects require a surround speaker system. For information about using
speakers in a Surround project, see Set up surround speakers for use in Logic Pro.
After connecting speakers or monitors to your computer, be sure to set them as your audio
output. For details, see Devices preferences in Logic Pro.
Configure audio devices to use with Logic Pro
Many Core Audio–compliant devices don’t require a driver to work with Logic Pro. For other
audio devices, you may need to install, select, activate, and configure the driver for the
device. Check the instructions that came with the device, and the manufacturers website,
for more information.
For devices that do require an audio driver, you configure the driver in Audio Devices
preferences.