OtherLow-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: VIBRATING71, C: Walls, D: Strongly
Walls, strongly vibrating walls (e.g. wooden paneling over air space)
PTB reference data
Original description
Walls, strongly vibrating walls (e.g. wooden paneling over air space)
Material properties
No further information available.
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.15
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.40 | 0.20 | 0.10 | 0.05 | 0.05 | 0.05 |
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Method (354): Measured