What is ringing out?

Ringing out is the process of identifying and fixing feedback issues in an audio system. Feedback occurs when sound from a speaker is heard by a microphone and loops back into the system, causing a high-pitched squealing or ringing sound. This can be a problem in live sound settings, as it negatively impacts sound quality and can be painful for listeners. To ring out a system, an audio engineer will play a test tone through the system and use an EQ to reduce the frequency bands that are causing feedback. They may also adjust the speaker and microphone positions or sound levels to further reduce feedback. Ringing out is an important part of sound system setup and troubleshooting, and it requires skill and experience to do effectively.