CSDA worked with the design team to provide acoustical consulting for a confidential client’s advanced technologies office space in Mountain View, CA. We provided analysis of noise and vibration from machinery to adjacent offices, along with providing design input on sound isolation, room acoustics and HVAC noise/vibration reduction.


Phase I – As a consultant to Freytag & Associates, we performed an airplane noise assessment for the District of Columbia focused on noise impacts from changes to flight paths made out Ronald Reagan Washington National Airport (DCA). There were two major parts to the project. The first consisted of a thorough review and documentation of existing data supplemented by new investigations to document the past and current airplane noise environment over the D.C. area. Second, the team worked to develop revised air traffic procedures, acceptable to the FAA, to minimize the current noise impact over the affected areas in D.C. The overall purpose of the project was to determine what, if any, noise impacts have occurred in the District as a result of the FAA’s implementation of NextGen air traffic control procedures and routes. Finally, we identified potential flight path/route changes and other airspace modifications to reduce flyover noise in the District.

Phase II – This phase built on the previous Phase I study. Utilizing the measurement data collected in Phase I, the consultant team computed various supplemental noise metrics (Lmax, Leq, Time Above Level, etc.) to further quantify noise impacts and changes in aircraft noise due to arrivals and departures at Ronald Reagan Washington National Airport (DCA). Additional long-term field measurements were conducted and the consultant team quantified the community impacts (e.g., sleep disturbance, speech interference) according to national standards. Additionally, we identified and encouraged improvements and changes to existing noise abatement procedures and practices to reduce aircraft noise impact over the District. Specific noise mitigation recommendations were developed for presentation to airport management, the Metropolitan Washington Airport Authority (MWAA), and to the Federal Aviation Administration (FAA). The primary beneficiary of this project is the District residents, as the goal of the project is to reduce DCA aircraft noise impacts and improve residents’ quality of life through aircraft noise reduction.


CSDA is providing acoustical consulting services for the adaptive reuse of 6 buildings for confidential tech client located in Mountain View, CA. The office buildings contain offices, meeting rooms, phone rooms, research and development spaces, and industrial spaces. We are providing recommendations for sound insulation, room acoustics, and HVAC noise. Additional inputs will be provided for structure borne noise and vibration transmission from the research and development spaces.


CSDA provided acoustical consulting for the Shattuck Lofts. We provided acoustical recommendations for the project to meet City and State code requirements. The four-story building has 22 units of sustainable and efficiently designed studios. The project utilizes pre-fabricated residential modules.


CSDA was retained to provide acoustical consulting for the 1919 Market Street project in Oakland, California. We provided acoustical recommendations for the project to meet City and State code requirements. The project consists of the conversion of an existing two-story industrial building to live-work flats and town-homes as well as the new construction of a four-story residential  building. Our acoustical consulting includes schematic design review, design development review, construction document review, bidding/permit phase assistance and construction administration support, as well as preparation of a construction noise and vibration control plan.