Reference: audienceHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: J.Meyer, Kirchenakustik, Verlag E. Bochinsky
Value from the PTB table, not verified
Pew cushions, 3 cm
PTB reference data
Original description
Pew cushions, 3 cm
Material properties
Thickness: 3 cm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
Values per m² of audience area, not per chair or person.
αw
0.50
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.20 | 0.60 | 0.75 | 0.85 | 0.85 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 3 cm | 0.50 | 0.10 | 0.20 | 0.60 | 0.75 | 0.85 | 0.85 |
Measured values as a table (1 measurement)
Access frequency bands, variants and export. Create a permanent free account
Last updated: