A sound reinforcement system is usually a system that amplifies the speaker's voice in real-time to the listener, and the speaker and listener are usually in the same acoustic environment. A successful sound reinforcement system must have sufficient loudness (sufficient sound gain) and sufficient fidelity (low percentage loss of speech sub tone fidelity), and be able to evenly cover the audience without covering areas without an audience.
The sound reinforcement system includes sound reinforcement equipment and sound field components, mainly including the sound source and its surrounding sound environment, microphones that convert sound into electrical signals, equipment and transmission lines that amplify signals and process signals, speakers that convert signals into sound signals, and the acoustic environment of the audience area.