hyperbola. In thepresent paper it is proposed to show that this formula is general,and applicable to any room; that in adapting it to different roomsit is only necessary to change the value of the constant of inverseproportionality k; that k is in turn proportional to the volume of 26 REVERBERATION… … 3 ^ 5 6 7 8 V 10 11 12 13 13 IS Length of cushions in meters Fig. 8. Curves showing the relation of the duration of the residualsound to the added absorbing material, — rooms 1 to 7. 1 a.3 2 I x X X \, •\ % ■^ -11, ^ t: ^ -12. , 2: ^ ~^ ^ S^ ■~~- ■— ^ ^ =~ 0 10 20 30 M 50 60 70 80 90 100 110 120…
Architectural acoustics
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