Noise Cube Specification
The Noise Cube is a self powered device providing constant background noise for Speech in Noise testing. It was designed primarily for use with our Parrot and Parrotplus systems, but can be used with any other speech source. The full specifications of the device can be found below.
| Noise Cube Mechanical Specification | |
|---|---|
| Dimensions | 127mm x 120mm x 130mm (WxDxH) |
| Weight | 980g approx |
| Power source | 3.7v 2000mAh Li polymer battery |
| Driver units | 1 x 10cm dual cone driver |
| Frequency response | 95 - 22000Hz (-10dB) |
| Noise Cube Electrical Specification | |
|---|---|
| Sampling frequency | 41kHz |
| Audio memory | 1GB TransFlash |
| Coding method | PCM/MP3 |
| Accuracy | 2dB |
| Output range | 35 - 75dB(A) in 5dB steps measured @ 75 cms |
| Noises available | Wideband noise Narrowband noise Adult babble Classroom babble |
| Additional Sounds (Only available on Noise Cube Plus) | Songs 6 songs suitable for younger children Song 1: Ten in a bed Song 2: Wheels on the bus Song 3: Down at the station Song 4: Heads and Shoulders Song 5: Happy and you know it Song 6: Row Row Row Animals sheep, chicken, lion, horse, cat, cow Warbles 250, 500, 1000, 2000, 4000, 5000 |
| Calibration noise | Wideband noise (60dB) |
| Display | 2.75 inch resistive full colour touchscreen display 640 x 320 pixels |
| Charger | 5v mini USB input. Built in 300mA charging circuit with auto shutdown when battery is fully charged |
