Research Article
Fault Detection of In-Service Bridge Expansion Joint Based on Voiceprint Recognition
Table 1
Sounds in BEJ environment.
| Factor | Description |
| Vehicle factors | Audio events generated by vehicles passing over BEJs include wheel impact sounds, vehicle horn sounds, and more | Human factors | Audio events, such as the sound of personnel speaking, can occur due to the passage of inspectors near BEJs | Bird and animal factors | Audio events, such as bird sounds, can occur due to birds and animals passing near the expansion joints | Noise factors | Noise can be generated by the aerodynamic factors of the environment in which it is located, such as urban ambient noise and beach ambient noise |
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