Which of the following functions can Aux Input tracks perform?

Aux Input tracks are designed primarily for routing audio signals within a Pro Tools session, and one of their key functions is to apply plugins and effects to audio without the need to record that audio directly. This allows for greater flexibility in sound design, mixing, and processing audio in real time.

When using Aux Input tracks, you can easily insert various effects and processors, such as EQ, compression, reverb, and others, before the audio is blended into the final mix. This is particularly useful for mixing and creating complex sound environments, as it helps manage resources and keeps the workflow efficient without cluttering the audio tracks with additional recorded material.

While Aux Input tracks play an important role in the mixing process, they cannot record audio directly from instruments, maintain a session’s tempo, or export the final mix themselves. These functions are handled by other components of the Pro Tools environment, such as audio tracks for recording, the tempo track for keeping time, and the bounce-to-disk function for exporting. Therefore, choosing the ability to apply plugins and effects without recording accurately reflects the primary function of Aux Input tracks.