Research Article
Fault Detection of In-Service Bridge Expansion Joint Based on Voiceprint Recognition
Table 3
Main configurations of the devices.
| Device | Parameter | Unit | Value |
| Microphone | Size | mm | 18.4 | Sampling rate | Hz | 32,000 | Bit depth | bit | 16 | Data format | — | WAV |
| Camera | Size | mm | 169.9 | Image size | px | | Image resolution | px | 2,073,600 | Frame per second | — | 25 | Data format | — | MP4 |
|
|