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Acoustic solutions for classrooms

Face to face teaching and learning

Good acoustics in classrooms will:

  • help students and teachers concentrate
  • make the teacher’s voice easily reach all students
  • make sure that, in group assignments, speech will not spread and disturb others

The most important thing in a classroom is speech clarity - for both teachers and students, both in traditional teaching and in group assignment. 

If a classroom has poor acoustics:

  • low-frequency sounds will distort speech
  • sound will bounce off ceiling and walls and create echoes
  • sound levels will escalate
  • students and teachers will have to raise their voices to be heard

This will make both teachers and students feel tired and unfocused. 


  • Reducing sound levels
  • Minimising background low-frequency sound
  • Ensuring speech clarity
  • Preventing the build-up of echoes
  • Ensuring speaker and listener comfort


  • Use a sound-absorbing ceiling with exceptional absorption qualities for all speech frequencies, and particularly low frequencies.
  • Add wall absorbers on the back wall for traditional teaching, and on two adjacent walls for group teaching.
  • Add a speech-reflecting zone in the ceiling above the teacher for traditional teaching.

Product recommendation 

 Product combination Absorption Class Low frequency (125 Hz) Total acoustic performance Ceiling surface
A 5 5 Akutex™ T
Ceiling: Gedina or Advantage
Wall: Akusto Wall
A 3 4 Akutex™ T or Advantage
Ceiling: Master B, Master F or Master SQ
Wall: Akusto Wall
A 2 3 Akutex™ FT

The recommendation above is for this particular activity and space, based on a comparison between Ecophon products. The scale applied ranges from 1 to 5, where 5 is the highest score.
The gamma surface is to be used for the speech-reflecting zone. 


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Colin Campbell

Central Concept Developer - Education

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Colin Campbell

Central Concept Developer - Education

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