AudienceHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: JASA 104 (6) Dec 1998
Heavily upholstered chair, occupied, Berlin Philharmonie
PTB reference data
Original description
Heavily upholstered chair, occupied, Berlin Philharmonie
Material properties
Surface: heavily upholstered
Application: audience
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.83
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.70 | 0.80 | 0.90 | 0.85 | 0.85 | 0.85 |
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Method (354): Measured