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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | AlienXXX |
| 许可： | CC-BY 保留署名许可协议 |
| 描述： | On the night of the 23rd Oct 2016, around 10pm, an helicopter was hovering close to our house. Then, at some point there were a total of 4 helicopters. 2 of them were definitely police helicopters. Recorded from my back garden with a Zoom H1. Unfortunately one of the recorder channels does not work anymore, so I had to discard it and convert the file to mono in Audacity.There is some wind noise. I did a low cut filter in Audacity for ~60Hz, but some wind noise is still present in certain parts. The helicopters left around 18min into the recording. I retained a few more minutes of audio to give the idea of the normal background noise. I live close to a major airport, so 2 airliner jets fly past towards the end of the recording after min 18. That is quite normal where I live. |
| 标签： | helicopters chopper police night helicopter |
| 音频格式 | wav |
| 声音时长 | 24:44 |
| 文件大小 | 135.9 MB |
| 比特率 | 767 kbps |
| 采样率 | 48000 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |