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===The answer?=== | ===The answer?=== | ||
[[File:ives_silentplaces_2.jpg| | [[File:ives_silentplaces_2.jpg|600px|Klein Venedig]] | ||
If I could get to know the average volume of several places in this town, I would simultaneously isolate the low level areas. Following this thought, I picked some example positions, where I recorded one minute of the noise in the morning, the early afternoon an evening over 3 days. So I got 9 audio files for every position, from which I calculated the average. Unfortunately I don't have a standardized measurement microphone, so I had to assign the results to numbers on a relative scale from 1 to 9, where 1 equals about -68dB and 9 about -20dB, according to the sensitivity of my mic (Zoom H4).<br> | If I could get to know the average volume of several places in this town, I would simultaneously isolate the low level areas. Following this thought, I picked some example positions, where I recorded one minute of the noise in the morning, the early afternoon an evening over 3 days. So I got 9 audio files for every position, from which I calculated the average. Unfortunately I don't have a standardized measurement microphone, so I had to assign the results to numbers on a relative scale from 1 to 9, where 1 equals about -68dB and 9 about -20dB, according to the sensitivity of my mic (Zoom H4).<br> | ||
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As a point of reference I took some recordings in the garden of my parent's house, which is situated in a village with only 200 inhabitants. As expected, with -58,3dB it's real quiet there, compared to Erfurt. It's a solid 2 on my relative scale.<br> | As a point of reference I took some recordings in the garden of my parent's house, which is situated in a village with only 200 inhabitants. As expected, with -58,3dB it's real quiet there, compared to Erfurt. It's a solid 2 on my relative scale.<br> | ||
'''The other places I chose, and their noise levels are:''' | '''The other places I chose, and their average noise levels are:''' | ||
Klein Venedig (small park region)<br> | [http://www.openstreetmap.org/?lat=50.9835064&lon=11.0247982&zoom=18 Klein Venedig] (small park region)<br> | ||
:-53,39dB : scaled '''3'''<br> | [[File:ives_silentplaces_Klein Venedig.jpg|100px|Klein Venedig]]<br> | ||
Krämerbrücke (historical bridge)<br> | -53,39dB : scaled '''3'''<br> | ||
:-50,40dB : scaled '''4'''<br> | |||
Schlüterstraße 3a (in front of my flat)<br> | [http://www.openstreetmap.org/browse/way/122237921 Krämerbrücke] (historical bridge)<br> | ||
:-48,81dB : scaled '''4'''<br> | [[File:ives_silentplaces_Kraemerbruecke.jpg|100px|Krämerbrücke]]<br> | ||
Fischmarkt (smaller public place)<br> | -50,40dB : scaled '''4'''<br> | ||
:-48,52dB : scaled '''4'''<br> | |||
Domplatz (large cathedral square)<br> | [http://www.openstreetmap.org/?lat=50.9851836&lon=11.0258666&zoom=18 Schlüterstraße 3a] (in front of my flat)<br> | ||
:-43,97dB : scaled '''5'''<br> | [[File:ives_silentplaces_Home.jpg|100px|Home]]<br> | ||
Anger (the central public place)<br> | -48,81dB : scaled '''4'''<br> | ||
:-42,19dB : scaled '''5'''<br> | |||
Stauffenbergallee (main road)<br> | [http://www.openstreetmap.org/?lat=50.977704&lon=11.0287246&zoom=18 Fischmarkt] (smaller public place)<br> | ||
:-37,09dB : scaled '''6'''<br> | [[File:ives_silentplaces_Fischmarkt.jpg|100px|Fischmarkt]]<br> | ||
Juri-Gagarin-Ring (main road)<br> | -48,52dB : scaled '''4'''<br> | ||
:-35,64dB : scaled '''6'''<br> | |||
Talknoten (crossing of the two)<br> | [http://www.openstreetmap.org/?lat=50.9726678&lon=11.0377412&zoom=18 Bahnhof](main train station)<br> | ||
:-33,58dB : scaled '''7''' | [[File:ives_silentplaces_Bahnhof.jpg|100px|Bahnhof]]<br> | ||
-44,14dB : scaled '''5'''<br> | |||
[http://www.openstreetmap.org/?lat=50.9772082&lon=11.0239248&zoom=18 Domplatz] (large cathedral square)<br> | |||
[[File:ives_silentplaces_Dom.jpg|100px|Domplatz]]<br> | |||
-43,97dB : scaled '''5'''<br> | |||
[http://www.openstreetmap.org/browse/node/1134148500 Anger] (the central public place)<br> | |||
[[File:ives_silentplaces_Anger.jpg|100px|Anger]]<br> | |||
-42,19dB : scaled '''5'''<br> | |||
[http://www.openstreetmap.org/?lat=50.975416&lon=11.0420633&zoom=18 Stauffenbergallee] (main road)<br> | |||
[[File:ives_silentplaces_Stauffenberg.jpg|100px|Staufenbergallee]]<br> | |||
-37,09dB : scaled '''6'''<br> | |||
[http://www.openstreetmap.org/browse/node/13889947 Juri-Gagarin-Ring] (main road)<br> | |||
[[File:ives_silentplaces_Juri.jpg|100px|Juri Gagarin Ring]]<br> | |||
-35,64dB : scaled '''6'''<br> | |||
[http://www.openstreetmap.org/?lat=50.9866667&lon=11.0277026&zoom=18 Talknoten] (crossing of the two main roads)<br> | |||
[[File:ives_silentplaces_Talknoten.jpg|100px|Talknoten]]<br> | |||
-33,58dB : scaled '''7''' | |||
I added the gained information to openstreetmap.org with the tag „noise“ and the relative volume level. Sure it will be deleted soon for inaccuracy, but however, I think the idea isn't that bad.<br> | |||
<br>[[File:ives_talknoten.jpg|600px|JOSM Talknoten]]<br> | <br>[[File:ives_talknoten.jpg|600px|JOSM Talknoten]]<br> | ||
These places are only examples or a kind of starting point for further studies. If one would continue to examine volumes like that (better with standardized equipment), a noise map could be made up, giving a growing overview about our sound environment and of course, the silent places. | |||
These places are only examples or a kind of starting point for further studies. If |
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