This page gives you an outline of our site with direct links to each page.  The Self-Help Section is in the column to the right and all other sections related to our consulting services are below.

Consulting Services   Printable

Architectural Acoustics Consulting        Printable

            Room Acoustics, Isolation, HVAC Noise   

            Architectural Spaces we have worked on

            Value Engineering   

           Web links to Architectural Projects

            Photos  of Architectural Projects   (not working)       

Environmental or Community Noise        Printable    


            Sources Evaluated or Controlled                                  

Workplace Noise Control Services

Doing Business




            One Client per Project

About Us


            Stewart            Printable

            Bridger             Printable

            Eaton               Printable

            Gagliardi          Printable

Affiliated Consultants

         F. C. Schafer

Technology Software, Measurement Instruments, Calibration, Sound Sources

Contact US 


News Archive

          Newsletter 40

          Newsletter 39

          Newsletter 38

          Newsletter 37

          Newsletter 36         

          Newsletter 35

          Newsletter 34

          Newsletter 33

          Newsletter 32    

          Newsletter 31

          Newsletter 30

       Newsletter 29

          Newsletter 28

          Newsletter 27

          Newsletter 26

          Newsletter 25

          Newsletter 24

          Newsletter 23

          Newsletter 22

           Newsletter 21

           Newsletter 20

           Newsletter 19

           Newsletter 18

           Newsletter 17

            Newsletter 16            

            Newsletter 15      

            Newsletter 14

            Newsletter 13

            Newsletter 12

            Newsletter 11

            Newsletter 10

            Newsletter 9

            Newsletter 8

            Newsletter 7

            Newsletter 6

            Newsletter 5




Self Help

Architectural Acoustics

Environmental-Community Noise

Industrial Workplace



            Sites of Regional Interest
            National & International Organizations
            Federal Agencies dealing with Noise
            Sites Providing Education in Acoustics
            University Sites
            Canadian Architectural Acoustics Research
            Sites about Classroom Acoustics
            Acoustical History
            Acoustical Testing Laboratories
            Sound Level Meter Manufacturers
            Noise Activists

Printable Documents

            Homes, Condos, Apartments
            Environmental Sound in the Community
            NC Local Noise Ordinance Discussion
            Table Comparing NC Local Noise Ordinances
            HUD and FHA Noise Criteria
            Air Conditioners and Noise Ordinances
            Insect Serenades Make Measurements Difficult
            HUD and FHA Noise Criteria
            Worship Space Acoustics
            Fellowship Halls a most common problem
            Band/Choral Rooms
            Libraries-Media Centers
            Converting Historic Buildings to Residential
            Acoustical Performance of Gypsum Walls
            Rating Sound Isolation, NIC, STC
            Establishing STC and IIC Ratings
            Sound Blockage
            Operable Partitions
            Impact Sound Isolation
            The Thump in Floors of Frame Construction
            Flanking of Sound around Partitions
            Use and Misuse of Acoustical Vinyl
            HVAC Noise Control Basic Guidelines
            Rating HVAC Noise in Rooms
            Data needed for HVAC Analysis
            LEED for Schools HVAC Guidance


Basic and Advanced Acoustics Texts
Acoustical Consulting Practice
General Architectural Acoustics
Specific Types of Architectural Spaces
HVAC Noise & Vibration Control
Noise and Acoustical Measurements Handbook
Noise Control Textbook
Noise Control Treatises
Hearing Conservation
History and Biography

Frequently Asked Questions

 FAQ General Acoustics

What is an acoustical consultant?
What do we hear as sound?
How do we quantify sound?
How do we measure sound?

FAQ Environmental and Community Noise

How does sound spread outdoors?
There is an annoying siren-like noise in our neighborhood, but it does not even change the sound level when it starts and stops. Why is it so annoying?

FAQ Architectural Acoustics

What does a sound absorbing material do?
How do walls block sound?
Why is my church fellowship hall so noisy?
Why do the footsteps of my neighbor upstairs sound like an elephant?
Why is my child's classroom so noisy they cannot hear the teacher?
My child's classroom is quiet, but they still cannot understand the teacher. Why?
We just had a new sound system installed, but there are dead spots in the room, and places where words are not understood. What is happening?