EDI Acoustics is "Making the World Sound Better One Project at a Time."

Backed by over 40+ years of experience, EDI has fully trained acoustical specialists that have served a host of clients. Projects include:

  • Theatres
  • Auditoria
  • Arenas
  • Churches
  • Synagogues
  • Educational facilities
  • Commercial facilities
  • Industrial facilities
  • Residential


    • These Performance Spaces share one common function - the presentation of information - be it for business, entertainment, or worship.

    EDI provides acoustical consulting services in areas of specialized technology.

    In recognition of the company’s founding principals -- Dr. J. T. Weissenburger (retired) and Dr. J. W. Schweiker (deceased) -- they had a dream of combining acoustics and vibrations as their initial expertise. EDI continues to provide many of these services relating to the broad field of acoustics and vibrations.

    EDI is a Corporation chartered by the State of Missouri.

    Performance spaces require considerable amounts of acoustical absorption placed on the surfaces throughout to enhance the listening experience and improve speech intelligibility. We specialize in acoustically modeling rooms and determining what materials and what amounts need to be applied to a space. EDI can test the reverberation time (RT) of your room and use that information to make recommendations to fine tune your product.EDI can also evaluate and make recommendations for the design of wall and floor/ceiling partitions and assemblies to ensure privacy. Privacy between adjacent spaces hinges on the quality and design of the wall and floor/ceiling partitions.


    EDI is capable of designing full-scale, professional-level, Audio Visual Systems. We will provide Design Documents, Bid Documents, and coordinate any issues that may come forth during installation. We can create full design drawings and specifications for bidding purposes for spaces where the goal is to provide a good listening and/or performance environment. Consulting for the following:

    Analyses and recommendations that target building system noise sources.

    We provide analysis and recommendations to help reduce employee and property line impact for industrial noise sources.

    EDI provides services in the following areas:

    EDI can provide engineering services when interior spaces are impacted by exterior noises generated by industry, highways, airplanes, trains, and other man made sounds.

    Additionally, we can perform tests to determine the interior metrics of a building such as Field Sound Transmission Class or Field Impact Isolation Class of a wall partition or floor/ceiling assembly.

    Performance Spaces & Auditoria

    EDI has provided engineering services to a diverse group of industrial clients. The following is a representative listing of these clients:

    EDI has provided consulting services to many architects, builders, and engineering companies. The following is a representative listing of these clients:

    EDI has consulted with numerous federal, state, and local government agencies on a wide variety of projects. Jobs vary from federal installation projects with concerns over sensitive material protection to small community issues over noise code compliance. Below is a listing of governmental agency clients:

    The following is a representative listing of these clients:

    Gary Brown - Principal

    Gary has over 20+ years of acoustical and vibration consulting experience with EDI. He has a Bachelor of Science Degree in Construction from Southern Illinois University-Edwardsville and a Bachelor of Science Degree in Civil Engineering from the Joint Engineering Program at Washington University/University of Missouri-St. Louis. He has taken several graduate courses in acoustics and vibration including Vibration Analysis, Structural Dynamics and Finite Element Analysis. He has been involved in every phase of the construction project from paper to build-out and has solved many acoustical and vibration problems throughout his career. Gary's motto is "Making the World Sound Better One Project at a Time."

    Dana Dold-Brown - Office Manager

    Dana joined EDI in October of 2010. She has 15+ years experience working in an office environment. She is responsible for keeping all Office items in line and up-to-date.

    Jason Farrell - Senior Technician

    Jason joined EDI in December 2002. He is currently pursuing a Bachelor of Science Degree in Mechanical Engineering in the Joint Engineering Program between Washington University/University of Missouri-St. Louis.

    Gary Miller - A/V Specialist and Part-Time Consultant

    Gary joined the EDI staff in February 2008. He brings to the EDI staff extensive experience in the design of audio, video and lighting systems. Gary has a Bachelor of Science Degree in Media Communications from Webster University, St. Louis. Among the many tours he has worked with, he was an Assistant Stage Manager and Head Audio Engineer for the Moscow Ballet Great Russian Nutcracker North American tour.

    J.T. Weissenburger D.Sc. P.E. – (Semi-Retired)

    Dr. Weissenburger was Principal Founder. He is past president of NCAC and a fellow ASME. He has written numerous articles.

    Gary Miller - A/V Specialist

    Gary joined the EDI staff in February 2008. He brings to the EDI staff extensive experience in the design of audio, video and lighting systems. Gary is pursuing a Bachelor�s Degree in Media Communications at Webster University. Among the many tours he has worked with, he was an Assistant Stage Manager and Head Audio Engineer for the Moscow Ballet Great Russian Nutcracker North American tour.