Indoor vs Outdoor Stadium noise levels

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SUMMARY

The Seattle Seahawks home stadium set a new outdoor noise record at 137.6 dB, surpassing the previous outdoor record, while the indoor noise record is held by the Sacramento Kings at 126 dB. The discussion highlights that outdoor stadiums can achieve higher noise levels due to construction materials and the absence of weather-related constraints that affect indoor stadiums. The acoustics of outdoor environments allow for greater sound dispersion, contributing to the louder noise levels recorded.

PREREQUISITES
  • Understanding of sound measurement units, specifically decibels (dB)
  • Knowledge of stadium acoustics and sound dispersion principles
  • Familiarity with construction materials and their impact on sound
  • Awareness of environmental factors affecting outdoor sound levels
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  • Research the principles of stadium acoustics and sound design
  • Explore the impact of construction materials on sound absorption and reflection
  • Investigate environmental factors that influence outdoor noise levels
  • Learn about sound measurement techniques and equipment used in sports venues
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Acoustics engineers, stadium designers, sports event organizers, and anyone interested in the dynamics of sound in different environments.

JJT211
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There's been a lot of headlines in sports lately about record breaking noise levels. The Seattle Seahawks home stadium broke the outdoor stadium noise record at 137.6dB (the previous record is from an outdoor stadium as well). The indoor stadium noise record is 126 dB at the Sacramento Kings (really??!?) stadium.

My question is, how/why is an outdoor stadium able to obtain louder noise levels than an indoor stadium? I would think it would be the other way around.
 
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JJT211 said:
There's been a lot of headlines in sports lately about record breaking noise levels. The Seattle Seahawks home stadium broke the outdoor stadium noise record at 137.6dB (the previous record is from an outdoor stadium as well). The indoor stadium noise record is 126 dB at the Sacramento Kings (really??!?) stadium.

My question is, how/why is an outdoor stadium able to obtain louder noise levels than an indoor stadium? I would think it would be the other way around.

It is strongly dependent on the material used in construction. Indoors they have more options, since outdoor weather effects (sun, rain, etc.) can be ignored.
 

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