AudienceHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: AUDIENCE_072, C: Audiences, D: Audience
Audiences, audience area, 0.72 persons/m²
PTB reference data
Original description
Audiences, audience area, 0.72 persons/m²
Material properties
Density: 0.72 persons/m²
Application: audience area
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.47
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.20 | 0.40 | 0.65 | 0.75 | 0.70 |
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Method (354): Measured