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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | daveincamas |
| 许可： | CC-BY-NC 非商业署名许可协议 |
| 描述： | This is the original, uncut, no noise reduction version of my recording of the eruption of Mt. St. Helens on May 18, 1980. The cleaned/shortened version is here: http://www.freesound.org/people/daveincamas/sounds/21432/ see a full description there. Over the years many people have asked for the original so I wanted to get that up on freesound too. This version might be useful to people who are interested in the timing of the booms. The mountain erupted at 08:32, and we heard the first booms at about 08:43 (it takes sound about 11 minutes to travel 140 miles). I got the recorder started at about 08:45. I just grabbed the first cassette tape I found, which had music recorded onto it. I included a bit of the music when I digitized the tape. My daughter just now used her phone app to identify the song: "Time to Hide" by Wings. Looks like the tape was a recording of the album "Wings at the Speed of Sound". What an appropriate album title Here are some notes on the recording: 00:00 Frying pan sound at the end of the song "The Cook of the House".00:02 Next song fades in. I have no idea what song this is but I always thought it made a great intro for a volcanic eruption :) UPDATE: The song is called "Time to Hide" also a very appropriate title.00:20 Recording begins00:36 00:43 The sound of the door in the bedroom as I leave the room or someone enters or something. Recall, the tape recorder is sitting in a window box, outside an open bedroom window. I am pretty sure I went back outside after I started recording.00:54 The 1st boom01:04 The 2nd boom, with birds chirping in the background01:55 3rd boom02:00 4th boom. Note that this is actually a small boom immediately followed by a louder one. Also note how close in time this is to the previous boom.03:24 I think this is the sound of the bedroom door being opened, i.e. I think I walked into the room.03:54 I think I had originally stood the tape recorder up on its end and this is the sound of it hitting the back of the window box as I leaned it backward so it wouldn't fall over.04:34 I think this is the sound of our neighbor's "baja bug" one quick rev.04:50 Someone in the neighborhood starts their car in the distance. The engine cranks for 4 seconds then starts.06:29 5th boom06:41 6th boom. This one was the loudest that I recorded. However as I recall, the booms before I started recording were the loudest.06:45 7th and final boom, a pretty quiet one.07:21 The baja bug drives away.07:26 Another car starts up.08:32 Starling or Stellar's Jay10:40 11:12 An apparently bad spot in the tape. Muffled sound.11:57 The magnetic tape ends and you hear the silence of the tape leader.12:08 End The 7th boom was the last one that we heard, i.e. I didn't "miss" any booms once I started recording. I just found this scientific paper on the booms: http://www.vetmed.wsu.edu/org_nws/NWSci20journal20articles/198520files/592/v5920p7920Dewey.PDF |
| 标签： | fieldrecording nature boom volcano washingtonstate earth naturaldisaster uncut weather stratosphere raw eruption mtsthelens newportoregon environmentalscience geology catastrophe explosion thud may181980 |
| 音频格式 | wav |
| 声音时长 | 12:08 |
| 文件大小 | 61.3 MB |
| 比特率 | 705 kbps |
| 采样率 | 44100 Hz |
| 位深度 | 16 bit |
| 声道 | 立体声 |