AudienceHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: UPHOLST_MED, C: Chairs, D: Medium
Chairs, medium upholstered concert hall chairs, average
PTB reference data
Original description
Chairs, medium upholstered concert hall chairs, average
Material properties
No further information available.
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 | 0.55 | 0.65 | 0.70 | 0.70 | 0.70 | 0.60 |
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Method (354): Measured