TextileHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Sound System Engineering, Don Davis and Carolyn Davis
Velour fabric, medium (14 oz), draped to half area
PTB reference data
Original description
Velour fabric, medium (14 oz), draped to half area
Material properties
Surface weight: 14 oz
Mounting: draped to half area
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.49
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.30 | 0.50 | 0.75 | 0.70 | 0.60 |
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Method (354): Measured