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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | HowardFromBroward |
| 许可： | CC0 公众共享许可协议 |
| 描述： | Same as a busy signal but faster cadence. Tone sent by the telephone company indicating blocking (no path available to called destination). 480Hz + 620Hz 500mS on/off |
| 标签： | callprogress circuitsbusy congestion fastbusy overflow telephone |
| 音频格式 | wav |
| 声音时长 | 00:09 |
| 文件大小 | 77.2 KB |
| 比特率 | 64 kbps |
| 采样率 | 8000 Hz |
| 位深度 | 8 bit |
| 声道 | 立体声 |