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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | PsychoPancake |
| 许可： | CC-BY-NC 非商业署名许可协议 |
| 描述： | Writing and drawing slowly with chalk on a blackboard. Recorded indoors with a Tascam portalble recorder. |
| 标签： | class drawing scraping board chalk writing scrape school blackboard OWI draw write classroom |
| 音频格式 | wav |
| 声音时长 | 00:22 |
| 文件大小 | 3 MB |
| 比特率 | 1138 kbps |
| 采样率 | 48000 Hz |
| 位深度 | 24 bit |
| 声道 | 立体声 |