Manufacturer
Texaa
Texaa is a privately owned French company with about 50 employees, based in Gradignan near Bordeaux. Since 1978 it has designed, manufactured and distributed acoustic solutions together with architects. Every product is covered with Aeria, Texaa's own sound-transparent knitted fabric, protected by an international patent and knitted in its workshop near Bordeaux in 30 colors. The range covers Stereo panels, Stereo Air open mesh panels, Strato ceilings, Vibrasto stretched cladding, Velio curtains, drapes and blinds, Kora screens and the Abso objects: cushions, pads, totems, cubes and cones. Texaa has offices in Frankfurt am Main and London, a sales contact for the USA, and exports worldwide.
Texaa Velio acoustic blinds
Description
Velio acoustic blinds are vertical slat blinds. A patented hanger plate hidden in the top hem replaces bottom weights and sits close to the rail, so little light passes above the slats. On the optional rail they turn and gather by cord. In front of glazing the blinds absorb sound, filter daylight and reflect part of the solar heat. Inside a room they mark out zones without closing them off, for example a quiet listening corner in a media library.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.20 | 0.45 | 0.70 | 0.65 | 0.80 |
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| Compare | Value | |
|---|---|---|
| Slats closed (180°) | NRC0.50 | |
| Slats open (90°) | NRC0.35 |
Test report: PV 1075
NRC: 0.50 (derived from ISO 354 lab data)
Institute: Texaa, Gradignan (FR)
Room volume: 7,126 cu ft
Object area: 119 sq ft
Distance: 3.9 in. in front of the wall
Measured values as a table (2 measurements)
| Build-up | NRC | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.9 in. in front of the wall · Slats open (90°) | 0.35 | 0.04 | 0.04 | 0.09 | 0.14 | 0.20 | 0.26 | 0.30 | 0.34 | 0.35 | 0.34 | 0.32 | 0.37 | 0.42 | 0.44 | 0.50 | 0.62 | 0.69 | 0.79 |
| 3.9 in. in front of the wall · Slats closed (180°) | 0.50 | 0.03 | 0.05 | 0.08 | 0.11 | 0.20 | 0.28 | 0.38 | 0.46 | 0.54 | 0.62 | 0.71 | 0.74 | 0.67 | 0.62 | 0.65 | 0.80 | 0.78 | 0.85 |
Measured values as a table (2 measurements)
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