What is the primary function of a digital mixer?

The primary function of a digital mixer is to convert analog audio signals to digital format. Digital mixers serve as a crucial interface between various audio sources and digital recording or processing systems. They take in the analog signals, which are typically produced by microphones or instrument outputs, and convert these signals into a digital format that can be manipulated within a digital audio workstation (DAW) or other digital environments.

This function is essential because it enables sound engineers and producers to have more flexibility and control over the audio processing. The digital format allows for the application of various effects, editing capabilities, and precise mixing techniques that would not be as easily achievable with purely analog systems.

In contrast, amplifying audio signals focuses on increasing the volume of sound but does not involve conversion to digital. Recording audio onto physical media pertains to the storage aspect rather than the mixing process itself. Eliminating background noise can be part of the overall process but is typically managed through different tools and software rather than being a primary function of a digital mixer.