ARCHITECTURAL ACOUSTICS, COMMUNITY NOISE SURVEYS, ELECTROACOUSTICAL SYSTEM DESIGN, ENVIRONMENTAL IMPACT STATEMENTS, MECHANICAL SYSTEM AND HVAC, MULTIMEDIA AND TV SYSTEMS DESIGN, OPEN-PLAN OFFICE ACOUSTICAL DESIGN, THEATER AND CONCERT HALLS, TRANSPORTATION NOISE CONTROL, EXPERT WITNESS, HEARING CONSERVATION SERVICE, INDUSTRIAL NOISE CONTROL, VIBRATION ANALYSIS AND CONTROL, FIELD TESTING