AudienceHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: J.Meyer, Kirchenakustik, Verlag E. Bochinsky
Occupied seating, average values for churches, 1.5 persons/m²
PTB reference data
Original description
Occupied seating, average values for churches, 1.5 persons/m²
Material properties
Density: 1.5 persons/m²
Application: churches
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.65
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.35 | 0.75 | 0.80 | 0.90 | 0.90 |
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Method (354): Measured