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