Setting Preferences
Remember, any changes you make to these are global to Logic Pro and therefore affect past, present, and future projects.
Audio Preferences
Under the Logic Pro menu, navigate to Preferences | Audio | Devices. If you have not already selected an audio interface, as we did when opening the template, this is where you will assign it. Core Audio should be checked, and if you make any changes in this tab, you need to click the Apply button to apply the changes:
Figure 3.3 – Enabling a Core Audio Device in the Audio Preferences
The I/O Buffer Size (In/Out) has a range of choices, from a low of 32 to a high of 1024. The lower the size you choose, the lower the latency. Latency is the amount of delay you hear when playing a software instrument or recording an audio part through plug-ins. So why not just choose the lowest number, 32, because who wants more latency?
The answer is that the lower the buffer size the harder your computer has to work...
