AudienceHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: AUDIENCE_104, C: Audiences, D: Audience
Audiences, audience area, 1.04 persons / m2
PTB reference data
Original description
Audiences, audience area, 1.04 persons / m2
Material properties
No further information available.
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.60
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.30 | 0.55 | 0.80 | 0.90 | 0.90 |
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Method (354): Measured