ARCHITECTURAL ACOUSTICS, AIRCRAFT NOISE ASSESSMENT, COMMUNITY NOISE SURVEYS, ENVIRONMENTAL IMPACT STATEMENTS, ELECTROACOUSTICAL SYSTEM DESIGN, EXPERT WITNESS, FIELD TESTING, INDUSTRIAL NOISE CONTROL, MECHANICAL SYSTEM AND HVAC, MULTIMEDIA AND TV SYST EMS DESIGN, OPEN-PLAN OFFICE ACOUSTICAL DESIGN, PRODUCT NOISE CONTROL, PRODUCT SOUND DESIGN, SEISMIC RESPONSE ANALYSIS, THEATER AND CONCERT HALLS, TRANSPORTATION NOISE CONTROL, VIBRATION ANALYSIS AND CONTROL