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Measuring noise in classrooms: a systematic review.

Vanessa Luisa Destro Fidêncio1, Adriane Lima Mortari Moret1, Regina Tangerino de Souza Jacob1

  • 1School of Odontology of Bauru, Universidade de São Paulo, Bauru, SP, Brazil.

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Classroom noise levels frequently exceed acceptable standards, with no consistent methods for measurement. This highlights the urgent need for acoustic adaptation in schools to improve learning environments.

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Area of Science:

  • Acoustic Science
  • Educational Environment Studies

Background:

  • Classroom acoustics significantly impact the learning environment.
  • Understanding noise levels and measurement methodologies is crucial for educational settings.

Purpose of the Study:

  • To review methodologies for measuring classroom noise.
  • To assess if measured noise levels meet established standards.

Main Methods:

  • Systematic review of 1,088 publications from the last ten years across six databases.
  • Inclusion criteria focused on recent, full-text articles measuring noise in regular school classrooms.
  • Descriptive analysis of eight selected studies.

Main Results:

  • Various measurement tools were used, including sound level meters (5 studies), dosimeters (1 study), and laptops with audio software (2 studies).
  • All reviewed classrooms exhibited noise levels exceeding permissible limits.
  • A lack of standardized noise measurement methodology was identified.

Conclusions:

  • Classrooms are consistently noisy environments.
  • There is a critical need for standardized methodologies in classroom noise measurement.
  • Schools require ongoing guidance on the importance of acoustic adaptation.