What are aux masters also referred to as?

Aux masters are often referred to as "Echoes" in the context of audio mixing and production, particularly in relation to how they function within a mixing environment. These channels are typically used to manage effects sends, where signals are routed to effects processors and then returned to the mix. By doing so, they allow a sound engineer to create effects like reverb or delay, which can enhance the overall sound without altering the original mix. This is critical for achieving a polished and professional sound in recordings and live performances.

The term "Echoes" likely stems from the common use of aux sends to create echo or delay effects that can be dynamically adjusted through the use of the aux master controls. These controls allow for precise manipulation of the level of effect applied to any given audio track.

In contrast, while terms like mixers, masters, and faders are related to audio mixing, they don’t specifically capture the auxiliary nature of aux masters or their primary function in routing and managing effects. Thus, "Echoes" serves as a more specific and relevant description in this scenario.