Measurement of the vocal noise level from children playing in nursery schools: Intensity and other characteristics of noise from playing children

Abstract

A survey was conducted to gather data for an assessment of the vocal noise level from children playing in 10 nursery schools. The equivalent continuous A-weighted sound pressure level measured 10 m from the center of a group of children playing in the nursery school yard was about 62 dB when there were 10 individuals and 74 dB when there were 100 individuals. The frequency analysis of vocal noise from children indicated peaks of around 1000 Hz and 2000 Hz.