AudienceHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: JASA 104 (6) Dec 1998
Audiences, seats fully occupied, lightly upholstered
PTB reference data
Original description
Audiences, seats fully occupied, lightly upholstered
Material properties
Surface: lightly upholstered
Application: audience
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.54
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.45 | 0.55 | 0.60 | 0.60 | 0.60 |
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Method (354): Measured