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4. Method for determining the acoustic characteristics of a room
4.1 Assessing sound levels in a room
The relationships used to define the sound levels of travelling waves are most often expressed in terms of two variables:
acoustic pressure (scalar quantity) p in Pa, or pressure level :
in dB
acoustic intensity (scalar or vector quantity) I in W/m ...
in dB
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Method for determining the acoustic characteristics of a room
Study of stationary reverberant fields in coupled rooms
Absorption coefficients of different materials
Room quality assessment criteria
As early as 1900, Sabine implicitly introduced the first criterion of room quality, based on the estimated reverberation time. Today, most authors agree that the acoustic quality of a room can be determined from a minimum of four or five criteria.
Among the most frequently cited are EDT [Early Decay Time: reverberation time calculated over the 0 to – 10 dB interval of the impulse...
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