TABLE 1.
NAO’s evolution in technical characteristics over the years.
| NAO version | V3+ (2008) | V3.2 (2009) | V3.3 (2010) | V4 (2011) | V5 (2014) | V6 (2018) |
|---|---|---|---|---|---|---|
| Storage | 2 GB Flash memory | 2 GB+8 GB Micro SDHC | 32 GB SSD | |||
| 2 × Cameras | 640 × 480, 30 fps | 1280 × 960, 30 fps | 640 × 480, 30 fps or 2560 × 1920, 1 fps | |||
| 58 Diagonal Field Of View | 72.6 Diagonal FOV | |||||
| (47.8 Horizontal FOV, 36.8 Vertical FOV) | (60.9 Horizontal FOV, 47.6 Vertical FOV) | 67.4 Diagonal FOV (56.3 Horizontal FOV, 43.7 Vertical FOV) | ||||
| 4 × Microphones | Sensitivity: −40 mV/Pa ± 3 dB | 20 mV/Pa ± 3dB | Omnidirectional | |||
| 250 mV/Pa ± 3dB | ||||||
| 100 Hz to 10 kHz | ||||||
| Frequency range: 20 Hz–20 kHz | 150 kHz to 12 kHz | |||||
| Languages | 9 (English, French, Spanish, German, Italian, Japanese, Korean, Chinese, Portuguese) | 19 languages (+ Arabic, Czech, Danish, Dutch, Brazilian, Greek, Polish, Finnish, Swedish, Russian, Turkish | 20 languages (+ Norwegian) | |||