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5. Study of stationary reverberant fields in coupled rooms
5.1 Exchanges of reverberant energy between two rooms connected by an opening
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Fundamental relationships
Consider two neighboring rooms of respective volumes V 1 and V 2 communicating via an opening of area S c (figure 26 ).
A sound source of constant power E 1 is placed in room 1 of volume V 1 .
Let A 1 be the absorption of...
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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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