11 WalMart Noise Study

Noise Expert (acoustical engineers) recently worked on a noise study for a proposed WalMart in Yuma, Arizona.

The City of Yuma has a noise ordinance of 55 dBA during daytime hours and 45 dBA during nighttime hours.  Where the ambient noise level is greater than the noise limit, the limit will be increased to the ambient noise level.

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10 Compressed Natural Gas (CNG) Fueling Station Noise Tests

Noise Expert (acoustical engineers) conducted noise studies for proposed Compressed Natural Gass (CNG) fueling stations in New Mexico, Texas, Connecticut, California, and New York. The operations generally consist of a fast fill dispenser island and several time fill spaces that operated 24 hours each day. The time fill spaces are used for fleet vehicles. The twin compressor can operated 24 hours per day.

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9 Mechanical Noise Barriers

Noise Expert has done a few project recently evolving mechanical noise. There are a few considerations when doing these projects,  one is to address the residents near the noise source. Noise regulation includes statutes or guidelines relating to sound transmission established by national, state or provincial and municipal levels of government. Large units such as transformers, generators, pumps cause unwanted noise and at times can be unpleasant to view.

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8 Litigation in Multi-Housing Buildings – Noise

The top 3 reasons for litigation encountered in multi-housing buildings. In fact, pets, parking and impact noises (footsteps such as high heels, falling objects, moving furniture, etc.) are the main sources of conflict experienced in condos, apartments and hotels. With the evolution of floor coverings in such environments (from carpet/resilient to wood), soundproofing is becoming a major concern in renovation and new construction. Today, before purchasing a housing unit, buyers are more than ever asking about the acoustical performance.

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7 Greater Sage-Grouse Lek Noise Monitoring

Noise Expert has been monitoring and evaluating the noise from greater sage grouse leks near a new mining operation.  The noise thresholds were set based on the pre-project noise levels measured last year.  We are conducting continuous noise measurements during mating season to prevent impacts from the mine.

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6 Indoor Theme Parks

Noise Expert has evaluated the noise at several indoor attractions including: Sea Life and Lego Land.  The primary noise issues that we addressed was sound isolation between display areas (where walls do not go to the structure) and the room acoustics in various spaces.  Our study included predictions and measurements.

5 Road Noise Analysis

Noise Expert is working on the noise study for the proposed Ina Road interchange at I-10 in Tucson, Arizona.  This is an ADOT project.  Noise Expert is responsible for the traffic noise model (TNM) which predicts the noise radiating from a road.  We are determining if noise mitigation measures (such as sound walls) are warranted.

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4 Band Shell Design and Noise Reduction

Noise Expert evaluated the proposed band shell design for the City of Chandler.  Noise Expert evaluated community noise and worked to maximize natural sound reinforcement.  Noise Expert compared existing noise levels with predicted future levels and made recommendations to minimize the impact.  To insure that natural sound reinforcement was being provided, Noise Expert evaluated the sound distribution.

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3 Festival Noise Reduction

Noise Expert attended the Albuquerque Balloon Fiesta and evaluated the noise radiating from the various events at the festival to residences in the vicinity.  Noise Expert worked with local agencies who were doing most of the noise gathering.  The noise radiating from the operation came from a number of sources.  Noise Expert evaluated the impact and provided recommendations to reduce the noise radiating to residences.

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2 Scottsdale Call Center Speech Privacy

A call center in Scottsdale, Arizona asked Noise Expert to evaluate speech privacy at their open office facility.  They currently use a masking system that had inconsistent coverage to improve speech privacy.  The noise between workstations travels by several paths, including, diffracting over the partitions, through the partitions, around the partitions, reflected off of the ceiling, reflected off of the walls, and reflected within the workstation walls to other workstations.

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1 Gym Vibration and Sound Transmission to Adjacent Offices

Noise Expert conducted noise and vibration measurements and evaluation in an office complex in Scottsdale, Arizona. A free weight gym is located between two offices. The clients in the gym regularly drop heavy weights that cause the floor to vibrate in the adjacent office spaces. One solution for the vibration transfer though a shared concrete floor is to float the gym floor.

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