https://www.wind-watch.org/w/index.php?title=Infrasound_and_low-frequency_noise&feed=atom&action=history
Infrasound and low-frequency noise - Revision history
2024-03-29T14:38:25Z
Revision history for this page on the wiki
MediaWiki 1.39.1
https://www.wind-watch.org/w/index.php?title=Infrasound_and_low-frequency_noise&diff=459&oldid=prev
Wikiros at 15:22, 27 October 2022
2022-10-27T15:22:03Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:22, 27 October 2022</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]] – <del style="font-weight: bold; text-decoration: none;">the </del>pulsing or throbbing <del style="font-weight: bold; text-decoration: none;">noise </del>– another characteristic that makes wind turbine noise more [[Annoyance|annoying]] and which itself, according to Australian acoustician Steven Cooper[https://www.wind-watch.org/documents/simplified-method-for-determination-of-amplitude-modulation-of-audible-and-inaudible-wind-turbine-noise/], may be “felt” like infrasound as it modulates at infrasonic frequencies.)</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]] – pulsing or throbbing – another characteristic that makes wind turbine noise more [[Annoyance|annoying]] and which itself, according to Australian acoustician Steven Cooper[https://www.wind-watch.org/documents/simplified-method-for-determination-of-amplitude-modulation-of-audible-and-inaudible-wind-turbine-noise/], may be “felt” like infrasound as it modulates at infrasonic frequencies.)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health Effects of Noise from Large Wind Turbines]].</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health Effects of Noise from Large Wind Turbines]].</div></td></tr>
</table>
Wikiros
https://www.wind-watch.org/w/index.php?title=Infrasound_and_low-frequency_noise&diff=458&oldid=prev
Wikiros at 15:21, 27 October 2022
2022-10-27T15:21:35Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:21, 27 October 2022</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]]<del style="font-weight: bold; text-decoration: none;">, </del>another characteristic that makes wind turbine noise more [[Annoyance|annoying]] and which itself, according to Australian acoustician Steven Cooper[https://www.wind-watch.org/documents/simplified-method-for-determination-of-amplitude-modulation-of-audible-and-inaudible-wind-turbine-noise/], may be “felt” like infrasound as it modulates at infrasonic frequencies.)</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]] <ins style="font-weight: bold; text-decoration: none;">– the pulsing or throbbing noise – </ins>another characteristic that makes wind turbine noise more [[Annoyance|annoying]] and which itself, according to Australian acoustician Steven Cooper[https://www.wind-watch.org/documents/simplified-method-for-determination-of-amplitude-modulation-of-audible-and-inaudible-wind-turbine-noise/], may be “felt” like infrasound as it modulates at infrasonic frequencies.)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health Effects of Noise from Large Wind Turbines]].</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health Effects of Noise from Large Wind Turbines]].</div></td></tr>
</table>
Wikiros
https://www.wind-watch.org/w/index.php?title=Infrasound_and_low-frequency_noise&diff=383&oldid=prev
Wikiros at 19:50, 9 October 2019
2019-10-09T19:50:17Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:50, 9 October 2019</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]<del style="font-weight: bold; text-decoration: none;">] [AM</del>], another characteristic that makes wind turbine noise more [[Annoyance|annoying]] and which itself, according to Australian acoustician Steven Cooper[https://www.wind-watch.org/documents/simplified-method-for-determination-of-amplitude-modulation-of-audible-and-inaudible-wind-turbine-noise/], may be “felt” like infrasound as it modulates at infrasonic frequencies.)</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]], another characteristic that makes wind turbine noise more [[Annoyance|annoying]] and which itself, according to Australian acoustician Steven Cooper[https://www.wind-watch.org/documents/simplified-method-for-determination-of-amplitude-modulation-of-audible-and-inaudible-wind-turbine-noise/], may be “felt” like infrasound as it modulates at infrasonic frequencies.)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health Effects of Noise from Large Wind Turbines]].</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health Effects of Noise from Large Wind Turbines]].</div></td></tr>
</table>
Wikiros
https://www.wind-watch.org/w/index.php?title=Infrasound_and_low-frequency_noise&diff=382&oldid=prev
Wikiros at 19:47, 9 October 2019
2019-10-09T19:47:53Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:47, 9 October 2019</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]], another characteristic that makes wind turbine noise more [[Annoyance|annoying]].)</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]<ins style="font-weight: bold; text-decoration: none;">] [AM</ins>], another characteristic that makes wind turbine noise more [[Annoyance|annoying]] <ins style="font-weight: bold; text-decoration: none;">and which itself, according to Australian acoustician Steven Cooper[https://www.wind-watch.org/documents/simplified-method-for-determination-of-amplitude-modulation-of-audible-and-inaudible-wind-turbine-noise/], may be “felt” like infrasound as it modulates at infrasonic frequencies</ins>.)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health Effects of Noise from Large Wind Turbines]].</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health Effects of Noise from Large Wind Turbines]].</div></td></tr>
</table>
Wikiros
https://www.wind-watch.org/w/index.php?title=Infrasound_and_low-frequency_noise&diff=329&oldid=prev
Wikiros at 20:09, 12 November 2017
2017-11-12T20:09:33Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:09, 12 November 2017</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations <del style="font-weight: bold; text-decoration: none;">– if they exist at all – </del>use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]], another characteristic that makes wind turbine noise more [[Annoyance|annoying]].)</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]], another characteristic that makes wind turbine noise more [[Annoyance|annoying]].)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health Effects of Noise from Large Wind Turbines]].</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health Effects of Noise from Large Wind Turbines]].</div></td></tr>
</table>
Wikiros
https://www.wind-watch.org/w/index.php?title=Infrasound_and_low-frequency_noise&diff=328&oldid=prev
Wikiros at 20:08, 12 November 2017
2017-11-12T20:08:51Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:08, 12 November 2017</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3">Line 3:</td>
<td colspan="2" class="diff-lineno">Line 3:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>''Low-frequency noise'' is that at the deeper-pitched end of the human conscious hearing (i.e., “audible”) spectrum, usually defined as the range from 20 Hz to 160 Hz. The full audible spectrum for humans extends up to 20,000 Hz, although for most people it is more limited, and for others it may extend down to 10 Hz or even 5 Hz.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>''Low-frequency noise'' is that at the deeper-pitched end of the human conscious hearing (i.e., “audible”) spectrum, usually defined as the range from 20 Hz to 160 Hz. The full audible spectrum for humans extends up to 20,000 Hz, although for most people it is more limited, and for others it may extend down to 10 Hz or even 5 Hz.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>''Infrasound'' is that below the normal audible spectrum, i.e., &lt;20 Hz. It is <del style="font-weight: bold; text-decoration: none;">sensed </del>rather than heard.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>''Infrasound'' is that below the normal audible spectrum, i.e., &lt;20 Hz. It is <ins style="font-weight: bold; text-decoration: none;">“felt” </ins>rather than heard.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</div></td></tr>
</table>
Wikiros
https://www.wind-watch.org/w/index.php?title=Infrasound_and_low-frequency_noise&diff=255&oldid=prev
Wikiros at 15:35, 31 August 2017
2017-08-31T15:35:53Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:35, 31 August 2017</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l11">Line 11:</td>
<td colspan="2" class="diff-lineno">Line 11:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health <del style="font-weight: bold; text-decoration: none;">effects </del>of <del style="font-weight: bold; text-decoration: none;">wind turbine noise</del>]].</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''''See also:''''' [[Health <ins style="font-weight: bold; text-decoration: none;">Effects </ins>of <ins style="font-weight: bold; text-decoration: none;">Noise from Large Wind Turbines</ins>]].</div></td></tr>
</table>
Wikiros
https://www.wind-watch.org/w/index.php?title=Infrasound_and_low-frequency_noise&diff=254&oldid=prev
Wikiros at 15:35, 31 August 2017
2017-08-31T15:35:14Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:35, 31 August 2017</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Large wind turbines have been known since the early 1980s to produce infrasound and low-frequency [[Adverse impacts of wind energy#Noise|noise]] (ILFN) that is intrusive and detrimental to health, both psychologically and physiologically.[https://www.wind-watch.org/documents/wind-turbine-acoustics-research-bibliography-with-selected-annotation/]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Large wind turbines have been known since the early 1980s to produce infrasound and low-frequency [[Adverse impacts of wind energy#Noise|noise]] (ILFN) that is intrusive and detrimental to health, both psychologically and physiologically.[https://www.wind-watch.org/documents/wind-turbine-acoustics-research-bibliography-with-selected-annotation/]</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">''Low-frequency noise'' is that at the deeper-pitched end of the human conscious hearing (i.e., “audible”) spectrum, usually defined as the range from 20 Hz to 160 Hz. The full audible spectrum for humans extends up to 20,000 Hz, although for most people it is more limited, and for others it may extend down to 10 Hz or even 5 Hz.</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">''Infrasound'' is that below the normal audible spectrum, i.e., &lt;20 Hz. It is sensed rather than heard.</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">ILFN travels much farther with less dissipation than higher-frequency sound. It can go around barriers and penetrate – even resonate with – walls.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations – if they exist at all – use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]], another characteristic that makes wind turbine noise more [[Annoyance|annoying]].)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Most existing noise regulations – if they exist at all – use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]], another characteristic that makes wind turbine noise more [[Annoyance|annoying]].)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">'''''See also:''''' [[Health effects of wind turbine noise]].</ins></div></td></tr>
</table>
Wikiros
https://www.wind-watch.org/w/index.php?title=Infrasound_and_low-frequency_noise&diff=249&oldid=prev
Wikiros: Created page with "Large wind turbines have been known since the early 1980s to produce infrasound and low-frequency noise (ILFN) that is intrusive and d..."
2017-08-30T21:28:01Z
<p>Created page with "Large wind turbines have been known since the early 1980s to produce infrasound and low-frequency <a href="/wiki/Adverse_impacts_of_wind_energy#Noise" title="Adverse impacts of wind energy">noise</a> (ILFN) that is intrusive and d..."</p>
<p><b>New page</b></p><div>Large wind turbines have been known since the early 1980s to produce infrasound and low-frequency [[Adverse impacts of wind energy#Noise|noise]] (ILFN) that is intrusive and detrimental to health, both psychologically and physiologically.[https://www.wind-watch.org/documents/wind-turbine-acoustics-research-bibliography-with-selected-annotation/]<br />
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Most existing noise regulations – if they exist at all – use [[Decibel|A-weighted noise measurement]], which emphasizes the range of human conscious hearing. Thus they fail to take ILFN into account. (They usually also fail to consider [[amplitude modulation]], another characteristic that makes wind turbine noise more [[Annoyance|annoying]].)<br />
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In 2011, Denmark imposed a 20 dBA limit for low-frequency (10–160 Hz) noise inside homes.[http://docs.wind-watch.org/DK-statute-wind-turbine-noise.pdf] A few localities have imposed limits defined by C-weighted measurements in addition to A-weighted, e.g., 50 dBC at the property line.[http://wndfo.net/ords]</div>
Wikiros