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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | klankbeeld |
| 许可： | CC-BY 保留署名许可协议 |
| 描述： | Strange recording at riverside with 2 piezoelectric microphones. http://static.panoramio.com/photos/medium/85737455.jpgSee the setting in the picture. I bought some 5cm piezo elements. Connected them to a 10 m long stereocord that i have split so I can put the piezos 4 m from each other. I recorded at the riverside. (See picture) I connected the piezos in a gap (1cm deep) of every fencepole, 3 meter from each other. so, the piezos are 4 cm out of the pole. Between the poles a barbed wire is stretched. The wind was blowing a little and I'm 8 meter from the edge of the river. The result is very remarkable. What you hear;1] the wind in the barbed wire and also the wire to the recorder.2] the geese. That is remarkable because that must be a direct soundregistration by the air. after 4.05 minutes I even hear a churchbell opposite the river. 3] a high frequency hum (around 3800 Hz, low level), could be interference from G3 telephone network or something, or noise from my equipment. I do not know for sure. 4] the waves of the river sometimes, could be a combined registration trough the poles and trough the air. 5] a ship passing after 8.41 minutes. Do I hear the marine propeller of the ship though the water and the ground? Whatever I hear I like the result is anyway. I hope you do to. My conclusion: These open piezos are fun to experiment with. I love the unexpected combination of direct air and pole recording. Tips (WARNING) of the day: 1] Do never experiment with a cord like this during an unstable day. So even if you think it could be thundering 20 km away, your equipment could be electrocuted by a faraway lightning This cord is a great antenna and that's a serious risk. 2] Never hit a piezo to hard, the effective voltage can rise easy op to more than 5 volts AC on by serious hit. Your input of your recorder does not survive that. So first connect the piezo to the surface you will record on and than connect the plug in your recorder. Start recording at level ZERO. Search on KLANKBEELD PIEZO for more results. Two piezo (contact) microphones > Sony PCM D50, no processing. recorded: river Maas, near village Bokhoven, Holland When you use this sound it would be nice if you spent a voluntarily donation to freesound. YOU ALWAYS HAVE TO CREDIT/ATTRIBUTE me (klankbeeld) and freesound.org in your work if you use this sound. Do it like this: sound from http://www.freesound.org/people/klankbeeld/Do not use an indirect link. |
| 标签： | wiring wind river weird shore contactmic contactmicrophone scary riverside waves water horror barbedwire fieldrecording noise barbed riverside ambience storm strange wire piezoelectric piezo ambient windy riverambience ambiance fence |
| 音频格式 | flac |
| 声音时长 | 12:37 |
| 文件大小 | 107.4 MB |
| 比特率 | 1189 kbps |
| 采样率 | 48000 Hz |
| 位深度 | 24 bit |
| 声道 | 立体声 |