The primary function of a digital console in audio applications is to manage and mix audio signals. Digital consoles facilitate the control of multiple audio inputs and outputs, allowing sound engineers to adjust levels, apply effects, and route audio. They often feature digital signal processing to enhance sound quality and provide flexibility in live performances or studio recordings. These consoles can connect to various audio sources and are often equipped with intuitive interfaces that support real-time adjustments, making them essential tools for professional audio production.