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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | uair01 |
| 许可： | CC-BY 保留署名许可协议 |
| 描述： | A repetitive beep signal recorded at 7340 kHz shortwave. Most probably it is a test signal before the real transmission starts. Many stations are active on this frequency. |
| 标签： | alien beep high mystery radio shortwave signal ufo |
| 音频格式 | wav |
| 声音时长 | 00:36 |
| 文件大小 | 6.2 MB |
| 比特率 | 1410 kbps |
| 采样率 | 44100 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |