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2. Noise barrier - Wikipedia

   en.wikipedia.org/wiki/Noise_barrier

   Noise barriers have been built in the United States since the mid-twentieth century, when vehicular traffic burgeoned. I-680 in Milpitas, California was the first noise barrier. [1] In the late 1960s, analytic acoustical technology emerged to mathematically evaluate the efficacy of a noise barrier design adjacent to a specific roadway. By the ...

3. Sound baffle - Wikipedia

   en.wikipedia.org/wiki/Sound_baffle

   Sound baffles on the wall of a recording studio. A sound baffle is a construction or device which reduces the strength (level) of airborne sound. Sound baffles are a fundamental tool of noise mitigation, the practice of minimizing noise pollution or reverberation. An important type of sound baffle is the noise barrier constructed along highways to

4. Noise control - Wikipedia

   en.wikipedia.org/wiki/Noise_control

   Many of these techniques rely upon material science applications of constructing sound baffles or using sound-absorbing liners for interior spaces. Industrial noise control is a subset of interior architectural control of noise, with emphasis on specific methods of sound isolation from industrial machinery and for protection of workers at their ...

5. Noise barriers along I-41 in Fox Cities are expected to cut ...

   www.aol.com/noise-barriers-along-41-fox...

   The cost of the new noise barriers will be added to the I-41 expansion project, and homeowners will not be responsible for their cost. All barriers are expected to cost $20 million, according to I ...

6. Acoustical engineering - Wikipedia

   en.wikipedia.org/wiki/Acoustical_engineering

   Noise control is a set of strategies to reduce noise pollution by reducing noise at its source, by inhibiting sound propagation using noise barriers or similar, or by the use of ear protection (earmuffs or earplugs). [20] Control at the source is the most cost-effective way of providing noise control.

7. Fox Valley residents to vote on 9 noise barriers as part of I ...

   www.aol.com/fox-valley-residents-vote-9...

   A public hearing on the noise barriers is set for 5 p.m. Jan. 23 at Fox Valley Technical College. ... Residents will only get to vote on the installation of noise barriers by their homes and must ...