Soundproofing means the reducing of the sound intensity with respect to a specified sound source and receptor. There are several basic approaches to reduce sound:

  • increasing the distance between source and receiver,
  • using noise barriers to reflect or absorb the energy of the sound waves,
  • using damping structures such as sound baffles,
  • or using active anti-noise sound generators.

Two distinct soundproofing problems may need to be considered when designing acoustic treatments –
To improve the sound within a room,
To reduce sound leakage to/from adjacent rooms or outdoors.
Soundproofing can suppress unwanted indirect sound waves such as reflections that cause echoes and resonances that cause reverberation.

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