Essential building measures
Laboratory acoustic measurements - Building and environment

For impact noise, there are two variables, one measured and the other calculated.

• Standardized impact noise level [6]L_n

  Note :

  A new European standard has recently replaced the old [7] standard.

  It characterizes the value of noise transmission through a floor when excited by an impact machine, also standardized. The root-mean-square sound pressure level (L _i ) is measured in a receiving room, then a correction is applied to reflect the reverberation time and volume of the room. This correction represents the absorption area A of the...