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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | amishman35isbricked |
| 许可： | CC0 公众共享许可协议 |
| 描述： | If you think a universal (commutator and brushes) motor is loud, it's what you're NOT hearing that is loud, that is, the radio waves. This is a recording of VLF at 5 kHz when such a motor turns on (Electric Field Reception). You can also hear the sound of the power grid humming. Recorded with a wire running out my window connected to a discarded FM whip antenna stuck into the ground for positive signal, and the house's ground for negative signal, then hooked directly into the BT878 tuner ADC. Then I used the tuner program I wrote to transpose from 5 kHz to DC. |
| 标签： | 5khz electricmotor interference motorstart vlf |
| 音频格式 | wav |
| 声音时长 | 00:36 |
| 文件大小 | 1007 KB |
| 比特率 | 227 kbps |
| 采样率 | 14222 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |