Tag Archives: sound measurement

Environmental Sound Monitoring

DPS Technical is a resource for comprehensive environmental sound monitoring projects.  Projects for developing noise control plans for motorized activities such as race tracks and motorized recreation facilities are our specialty.

The projects can be straight forward individual special event activities such as air shows, outdoor motorcycle races, indoor arena style events that have a limited need for noise data, or the projects can be part of an environmental assessment program.

We have performed services for a wide variety of projects and are well equipped to function in remote off road locations.  We have capabilities to perform short term site and activity specific projects or more involved continuous fixed location, continuous sound and environmental monitoring.

We have been the contributing research firm for numerous projects including the California Off Highway Vehicle Noise Study, the USDA Helicopter Over flight study and many regional special events.

We have posted additional information in our resource library.

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Video: Environmental Sound

Facility Noise Occupational Safety and Health Monitoring “OSHA” Compliance

Occupational Safety and Health Standards, 29 CFR 1910.95  – Occupational Noise Exposure the sound levels that the employees are being exposed to are identified by a measurement procedure that specifies loudness (volume) Frequency (pitch) and the exposure time, or dose.

We are well equipped and experienced to take accurate measurements in the areas of concern and then utilize the measurement information to help the management team determine what ear protection and other measures are required as directed in the occupational compliance regulations.

Our reports are comprehensive, well documented informational tools for the compliance and loss prevention team.

The attached web link contains information on the regulation and other resources that should provide guidance:

We have posted additional information in our resource library.

Occupational Noise Exposure

29 CFR 1910.95


Duration per day, hours Sound level dBA slow response
1/4 or less

This standard states: The employer shall administer a continuing, effective hearing conservation program, as described
in paragraphs (c) through (o) of this section, whenever employee noise exposures equal or exceed an 8-hour time-weighted
average sound level (TWA) of 85 decibels measured on the A scale or equivalently a dose of fifty percent.

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Field Logistics

Field logistical services  / Media support

DPS Technical Inc. has capabilities for providing sound studies and solutions to noise mitigation in both local and remote locations. Our DPS Technical Inc. logistical support service has the ability to perform services such as professional support in sound measurement, management, and mitigation for Law Enforcement and Land Managers, as well as education, equipment, and support for the organized event/race promoting Club or Track Owner.  Media support for On Road, Off Road and ATV vehicles, vehicle introductions, sound measurement, and education in most locations in the US are also available.

Our field service center can be seen at numerous motorcycle & ATV motorsports events each year, such as the Nevada 200 & 1000, Loretta Lynn’s Motocross Championships, the Rocky Mountain ATV Jamboree, as well as at media functions such as the Dirt Rider Magazine 24 Hour, and community educational events such as the NOHVCC National Land Managers Conference, and Community & Vehicle Noise Abatement Outreach Clinics.  Our field services assist our clients as well as their customers.  Feel free to stop by the DPS Technical Inc. mobile service center anytime for an introduction to sound education and management or for a voluntary “non-ticket” vehicle sound test.

DPS Technical Media Support DPS Technical Field Logistical Services

Sound Measuring Equipment

DPS Technical supports responsible OHV recreation and believes that excessive sound levels are a main cause of complaints against the sport.

Since 2004 DPS Technical, Inc. has supplied equipment and training for hundreds of OHV law enforcement officers and civilians throughout North America and these dedicated individuals perform sound level tests when possible.

A need for more citizen involvement in voluntary OHV testing has been identified. To remedy the lack of equipment for citizens to provide voluntary OHV sound level testing, DPS is implementing a Sound Testing Equipment Kit Program.  The testing kit includes a Calibrated Type ll sound meter, tachometer, tape measure, storage box and other items necessary to perform spark arrestor inspections, or the SAE 1287 OHV field sound test or the SAE 2825 On Highway Motorcycle sound test procedure.

For further information on the program or to apply contact DPS Technical, Inc. – Chris Real at (909) 981-5228.

DPS Technical also has sound measurement training classes for civilians and law enforcement personnel. Many of the classes are held under contract and sponsored by The State of California OHV Division. To receive information on our training schedule in your area contact DPS Technical for details.

Chris Real, CLS   President
DPS Technical, Inc.
1160 Dewey Way, Suite D
Upland, CA 91786
(909) 981-5228 T