The research looks at how excessive sound loudness is a serious issue in church auditoriums in South-western Nigeria. Excessive sound exposure has resulted in noise pollution, which is hazardous to human health. Participants observed musical acoustics in worship auditoria using a Virtual Instrument, a Sound Pressure Level mobile application loaded on a mobile phone for sound volume measurement, to collect data for this article. The comparable noise level was measured using A-weighting for twenty minutes per day in each of the three worship services at various days and times in each of the selected church auditoria during each worship service. Each musical session's LAeq, T, was computed. Worshippers are exposed to average noise levels of 90.29 dB (Threshold of Pain) during every worship session, which is greater than the World Health Organization's recommended 60 dB for a normal human ear (WHO). It was also discovered that all of the church auditoriums studied lacked adequate acoustic treatment, resulting in sound reflections and significant echo. The research finds that in Nigerian society, noise pollution has become a social phenomena, particularly in church auditoriums, where loud musical sound is associated with power and space dominance. The Nigerian local, state, and federal governments should stress acceptable ideal sound production criteria in enclosures and open spaces to effectively manage noise for human and societal wellness, according to this article.
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