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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | AlienXXX |
| 许可： | CC-BY-NC 非商业署名许可协议 |
| 描述： | I was travelling by train on 5Nov2018 evening rush hour, standing near the intrain automatic doors that separate carriages. The doors have sensors and open when someone comes close to them, because the train was very full the doors remained open most of the time. However, now and then they would spontaneously close, only to open again a few seconds later.When closing, the doors made a horrible metallic squeak. However, this only happened during closing. When opening there was no unusual noise. I managed to make a recording using my Samsung Galaxy 3 mobile phone. Converted to wav using Audacity on my PC. around 7s, someone coughsaround 22s squeaksaround 42s beeps, doors open, intrain announcement, beeps, doors close1m13s the inside train doors between carriages close with a loud squeak |
| 标签： | transport automatic railway squeak mechanical doors train field travel fieldrecording announcement |
| 音频格式 | wav |
| 声音时长 | 01:21 |
| 文件大小 | 6.9 MB |
| 比特率 | 710 kbps |
| 采样率 | 44100 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |