Outdoor Acoustic Test - Grasshopper2024-03-29T07:29:33Zhttps://www.grasshopper3d.com/forum/topics/outdoor-acoustic-test?groupUrl=pachyderm&feed=yes&xn_auth=noHello Ander,
thank you for…tag:www.grasshopper3d.com,2021-03-22:2985220:Comment:21796732021-03-22T08:58:19.674ZLelehttps://www.grasshopper3d.com/profile/Lele115
<p>Hello Ander, </p>
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<p>thank you for the info! I will check DIN9613-3 and read a bit more about it.</p>
<p>Hello Ander, </p>
<p></p>
<p>thank you for the info! I will check DIN9613-3 and read a bit more about it.</p> Hello Lele. Assuming you have…tag:www.grasshopper3d.com,2021-03-19:2985220:Comment:21793842021-03-19T14:10:24.976ZAnder Perezhttps://www.grasshopper3d.com/profile/AnderPerez
Hello Lele. Assuming you have a line source with L'w = 72 dB, the geometrical attenuation (see DIN9613-2) is 29+3 = 26 dB. Thus, you would have something around 46 dB.<br />
Just in front of your source the terrain seems to go upwards, providing extra attenuation. It would be good if we kenw if Pachyderm does compute the ISO 9613 attenuation for terrrain reflections / attenuation due to barriers.
Hello Lele. Assuming you have a line source with L'w = 72 dB, the geometrical attenuation (see DIN9613-2) is 29+3 = 26 dB. Thus, you would have something around 46 dB.<br />
Just in front of your source the terrain seems to go upwards, providing extra attenuation. It would be good if we kenw if Pachyderm does compute the ISO 9613 attenuation for terrrain reflections / attenuation due to barriers.