Sound reinforcement systems, often referred to as ‘sound field’ or ‘sound field FM’ systems, are relatively inexpensive solutions for noisy classrooms with poor listening conditions.
A typical system consists of a ‘pop-star-style microphone, which is worn by the teacher. This transmits the teacher’s voice wirelessly to four separate loudspeakers in the classroom, distributing the sound clearly throughout the classroom to the students.
Sound fields raise the ‘signal-to-noise ratio’.
This means that the voice of the teacher is not swamped by the background noise. The result is improved speech intelligibility and reduced vocal strain. This benefits the whole class, including the teacher.
More than 150 classrooms in New Zealand have sound fields installed.
Teachers report positive effects on spoken language, literacy levels, classroom harmony, more on-task behaviour, stress levels, and special needs referrals.
See also
Childrens Hearing in the Classroom
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