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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | conradts |
| 许可： | CC-BY-NC 非商业署名许可协议 |
| 描述： | Noisy sound and mid high frequencies when the intensity increases hitting the blackboard with the chalk. Recorded with Zoom H4n, Wav format, 44.1, 16 bits. In Roc Boronat Building at Campus Poblenou (UPF) in a classroom. |
| 标签： | UPFCS13 campusupf draw blackboard chalk |
| 音频格式 | wav |
| 声音时长 | 00:03 |
| 文件大小 | 660.6 KB |
| 比特率 | 1411 kbps |
| 采样率 | 44100 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |