Raumakustische Computersimulation - Systmuwi.de
Raumakustische Computersimulation - Systmuwi.de
Raumakustische Computersimulation - Systmuwi.de
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Vorlesung im MUWI <strong>de</strong>r Uni Hamburg: <strong>Raumakustische</strong> <strong>Computersimulation</strong> /Elbphilharmonie“ 24.6.08 59<br />
RT 30 /T ey for the 3D –Room Mo<strong>de</strong>l with / without peak<br />
scattering audience: AG=0.8, DG=1, all other walls: AG= 5%, DG=10%<br />
4 large audience areas, mean absorption <strong>de</strong>gree = 42%; T ey =1.41…1.43s<br />
(with N =2150 seats expected: T sab =3.6s; with 3440m², AG=80%: T sab =1.87…1.91s)<br />
computed with CATT (200000 rays, 6 receivers, 6 oct. bands, 8 repetitions)<br />
Half<br />
value<br />
with a<br />
small<br />
peak in<br />
the roof!<br />
2<br />
1.8<br />
1.6<br />
1.4<br />
1.2<br />
T=1.96Tey<br />
T30<br />
T15<br />
EDT<br />
Eyring<br />
Sabine<br />
TSab=1.3Tey<br />
1<br />
0.8<br />
T=1.01Tey<br />
Ceiling w peak Flat ceiling<br />
TKutt=0.9Tey
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