Did you know good sound in the classroom could have these positive effects? Enhanced audio can cause less stress in the classroom and fewer discipline issues. With the help of microphone amplification, teachers can now speak in their natural, soothing voice to teach their lessons and students no longer feel as though they are being yelled at.Classroom amplification systems allow students to hear more clearly and learn more. These systems improve speech intelligibility, comprehension and retention through proper engineering. Studies have also found that test scores can improve from 10%–30% with amplified sound in classrooms.Use of audio visual aids improves student’s critical and analytical thinking. It helps the teacher to present the lesson effectively and students learn and retain the concepts better and for a longer duration.