AVIXA Recognized AV Technologist Practice Test

A mix-minus sound reinforcement system is specifically designed for situations where a performer or speaker needs to hear themselves and other audio sources without hearing the sound coming from their closest microphone, which could cause feedback or echo. In this context, "mix-minus" refers to a scenario where the audio engineer creates a mixed audio feed that includes all relevant microphones and audio signals for the performer or speaker, but deliberately omits the signal from their own microphone. This ensures that they can listen to the mix of other inputs clearly without the distraction of their own voice. This setup is particularly useful in live settings, such as during performances or broadcasts, where clear communication and sound monitoring are essential. It allows for a better balance of sound and minimizes potential audio issues, creating a more manageable environment for audio outputs. The other choices describe different systems or scenarios that do not align with the definition of a mix-minus system. For example, one describes a system without human voices, while another refers to it handling ambient noise or frequencies outside the audible range, which are not relevant to the concept of mix-minus audio monitoring.