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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | smokeyvw |
| 许可： | CC-BY 保留署名许可协议 |
| 描述： | What I hear when I enter the building at work. Distant highway traffic. Electronic security beeps and door locks clicking. Footsteps. Doors opening and closing. Typical hum of office building ventilation system. |
| 标签： | beep close door electronic footsteps open |
| 音频格式 | mp3 |
| 声音时长 | 01:26 |
| 文件大小 | 1.3 MB |
| 比特率 | 1378 kbps |
| 声道 | 立体声 |