Acoustic Engineering

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Designing Environments That Sound as Good as They Look

At Diamond Engineering & Consulting Group, our Acoustic Engineering Division delivers innovative, science-based solutions that shape how people experience sound in the spaces where they live, work, and perform.

From critical listening environments and performance halls to industrial facilities and transportation infrastructure, we design systems that control noise, optimize acoustics, and enhance clarity creating spaces that perform as precisely as they look.

We combine engineering rigor with architectural sensitivity to achieve environments that balance comfort, compliance, and functionality across every sector.

Our Services

Architectural Acoustics

• Interior acoustic design for offices, classrooms, auditoriums, studios, theaters, and worship spaces.
• Room shaping, material selection, and surface treatment to optimize speech intelligibility and musical balance.
• Ceiling, wall, and floor assemblies engineered for superior Sound Transmission Class (STC) and Impact Insulation Class (IIC) ratings.
• Design for open office acoustics, privacy zones, and sound masking integration.
• Collaboration with architects and interior designers to harmonize performance with aesthetics.

Noise & Vibration Control

• Building and mechanical noise control for HVAC, plumbing, and electrical systems.
• Structural vibration isolation for rotating equipment, chillers, cooling towers, and generators.
• Resilient mounting, inertia base, and floating slab system design.
• Field measurement and vibration analysis for troubleshooting and retrofits.
• Specification of noise and vibration isolation materials meeting ASHRAE and ASTM standards.

Environmental & Community Noise

• Site-specific modeling of environmental noise from highways, railroads, airports, utilities, and industrial facilities.
• Sound propagation analysis using CadnaA and SoundPLAN software.
• Noise mitigation design for barriers, berms, and absorptive walls.
• Environmental noise impact studies supporting zoning, permitting, and NEPA/State Environmental Quality reviews.
• Long-term monitoring for compliance with local ordinances and EPA/state noise regulations.

Mechanical & Electrical System Acoustics

• Design and review of duct systems, diffusers, and plenums for low-noise air distribution.
• Silencer and acoustic lagging design for fans, pumps, and compressors.
• Electrical and data room noise management for mission-critical facilities.
• Integration of vibration isolators, flexible connections, and acoustical enclosures.
• Coordination with MEP teams to balance performance, airflow, and noise attenuation.

Industrial & Utility Facility Acoustics

• Acoustic design for power generation, cogeneration, and natural gas turbine facilities.
• Noise control for transformers, substations, and switchyards.
• Mitigation of process and mechanical noise in manufacturing, wastewater, and energy facilities.
• Enclosure and muffler design for compressors, pumps, and pressure-relief systems.
• OSHA and NIOSH occupational noise exposure assessments.

Transportation & Infrastructure Noise

• Rail, roadway, and airport noise analysis for new or expanded facilities.
• Sound wall design, tunnel acoustics, and station reverberation control.
• Track vibration and structure-borne noise evaluation for rail and subway systems.
• Airport terminal acoustic zoning and paging intelligibility analysis.
• Coordination with DOT, FAA, and local transportation authorities for compliance and design review.

Testing, Measurement & Commissioning

• On-site sound pressure level and vibration measurement using ANSI Type I instrumentation.
• Reverberation time (RT60), background noise (NC/RC), and sound isolation (STC/IIC) testing.
• Post-construction acoustic commissioning and verification reporting.
• Troubleshooting and remediation for noise complaints and performance issues.

Markets We Serve

• Commercial & Mixed-Use (offices, hotels, retail, high-rise residential)
• Education & Civic (schools, universities, libraries, government buildings)
• Healthcare & Life Sciences (hospitals, labs, research facilities, cleanrooms)
• Industrial & Utilities (power plants, factories, substations, water treatment facilities)
• Transportation Infrastructure (rail, airport, and highway acoustics)
• Performing Arts & Entertainment (theaters, concert venues, broadcast studios)
• Government Agencies & Defense Facilities (secure areas, command centers, training facilities)

Codes, Standards & Guidelines

Our Acoustic Engineering practice adheres to the most current standards and regulations, including:

• ANSI S1/S12 series, ASTM E336/E413/E1007, and ISO 140 standards for sound and vibration measurement.
• ASHRAE Applications Handbook Chapter 49 for HVAC acoustics.
• FHWA, FAA, and FRA environmental noise guidelines.
• LEED, WELL, and Green Globes acoustic performance criteria.
• Local and state noise ordinances for community impact and environmental review.

Technology & Analysis Tools

• Acoustic modeling and 3D simulation using CadnaA, EASE, and INSUL software.
• Finite element and boundary element analysis for complex vibration problems.
• Revit-based BIM coordination for acoustic integration in architectural models.
• Digital commissioning and predictive analysis for design verification.

Quality, Safety & Performance

Every Diamond acoustic design undergoes peer review through our ISO 9001–aligned Quality Management System, ensuring accuracy, constructability, and conformance with client performance goals.
Our field specialists work closely with construction teams to verify compliance and maintain safe, effective noise control solutions during installation.

Sustainability & Wellness

Sound design is fundamental to sustainability and human wellness. Our engineers integrate low-noise HVAC systems, passive design strategies, and sound-absorptive materials to create spaces that enhance occupant comfort, reduce stress, and improve productivity.

We actively support projects pursuing LEED, WELL, or Fitwel certification by contributing acoustic analysis and documentation that meet environmental and health performance standards.

Our Deliverables

• Acoustic design reports and recommendations
• Sound and vibration modeling graphics
• Equipment noise mitigation details
• Testing and measurement data with certified reports
• Specifications and construction documents
• Post-occupancy commissioning and verification reports

Why Diamond

• Multidisciplinary Expertise — coordinated with our structural, mechanical, and electrical teams for total-system harmony.
• Technical Precision — advanced modeling and analysis ensuring quantifiable performance.
• Client-Focused Solutions — tailored designs that meet both functional and aesthetic goals.
• Regulatory Confidence — proven experience in compliance with local and federal noise requirements.
• Commitment to Excellence — engineering that enhances comfort, safety, and productivity across environments.

Shaping the Sound of Progress

Whether reducing industrial noise, perfecting performance-hall acoustics, or achieving compliance on a transportation corridor, Diamond Engineering & Consulting Group delivers acoustic solutions that perform with precision and purpose.

Contact us today to learn how our Acoustic Engineering team can help create quieter, more productive, and more inspiring environments.