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MAIN PAGE Design Services Working with a Consultant Acoustics Audio/Video Presentation System Design Video Conference Systems Video-based Education Presentation Systems sight lines projection lines screen size ambient light control resolution lectern and presentation millwork design control or projection booth layout Audio/Video Network Design Church and House of Worship Acoustics speech intelligibility excess reverberation time Why does excess reverberation time affect speech intelligibility? sound systems sound systems: mono vs. stereo Computer Modelling of Rooms Control Systems Design Convention and Meeting Facilities Courtrooms and Courthouses Disability Access for Hearing Impaired Persons Elementary, Junior and Senior Schools classroom speech intelligibility classroom speech reinforcement classroom speech intellligibility and background noise Why does excess reverberation time affect speech intelligibility? Innovative Design Solutions Medical Simulation Training Systems Music and Drama Theatre Acoustics reverberation time useful reflections Loudspeaker Array Case Study Post-Secondary Education Facilities classroom speech intelligibility classroom speech reinforcement classroom speech intellligibility and background noise Why does excess reverberation time affect speech intelligibility? Video-based Education Presentation Systems Product Evaluation and Application Testing Proposal Evaluation Services Sound System Design and Evaluation Really bad examples of system installation Time Energy Frequency Measurments Speech Intelligibility Evaluation Why does excess reverberation time affect speech intelligibility? classroom speech intelligibility classroom speech reinforcement classroom speech intellligibility and background noise Loudspeaker Array Case Study Guided Tour of a Loudspeaker Array Main floor coverage Balcony coverage A Slide show of all ten measurements Sports and Recreation Facility Acoustics TEF Analysis Video Conference Facility Design Project List UBC AMS Student Nest - Vancouver, BC BC Ferry Corporation Terminal Paging System Evaluation- Victoria, BC BCIT Health Sciences Centre - Burnaby, BC (opens new browser window with Sway presentation) BC Cancer Research Centre - Vancouver, BC Bear Mountain Arena - Victoria, BC BC Hydro Customer Centre - Vancouver, BC British Columbia Legislature - Victoria, BC Burnaby Lake Sports Field - Burnaby, BC Calgary Stampede Grandstand - Calgary, AB Grandstand Cluster fabrication Children & Women's Health Education Centre Auditorium - Vancouver, BC Cloverdale Recreation Centre - Surrey, BC Decidedly Jazz Danceworks Dance Centre - Calgary, AB Flipped Lecture Table Development Four Seasons Hotel - Whistler, BC Gleneagles Community Centre - West Vancouver, BC Grandview Heights Aquatic Centre - Surrey, BC Guildford Pool - Surrey, BC Kelowna Council Chamber - Kelowna, BC Kelowna General Hospital, Clinical Academic Campus - Kelowna, BC Langara College, Science & Technology Building - Vancouver, BC Maurice Young Millennium Place - Whistler, BC Medical Provincial Affiliated Academic Campus Technology - BC NAIT Centre for Applied Technology - Edmonton, AB NexSource Centre - Sylvan Lake, AB NAIT Banking & Stock Trading Simulation Lab (BSTL) - Edmonton, AB Poirier Sport and Leisure Complex - Coquitlam, BC Princes Island Park - Calgary, AB Princes Island Park Enmax Stage - Calgary, AB Prince George Council Chambers - Prince George, BC Prince George Multiplex - Prince George, BC Richmond Council Chambers - Richmond, BC Richmond Olympic Oval - Richmond, BC Royal Jubilee Hospital Medical Simulation Centre - Victoria, BC Hospital for Sick Children, Centre for Research and Learning - Toronto, ON Simon Fraser University Convocation Mall - Burnaby, BC Simon Fraser University Lorne Davies Complex - Burnaby, BC St.Paul's Hospital Clinical Academic Campus - Vancouver, BC Surrey Sport and Leisure Complex - Surrey, BC Surrey Memorial Hospital Clinical Academic Campus (CAC) - Surrey, BC Surrey School District SD-36, Resource Education Centre - Surrey, BC Surrey School District SD-36, Unified Media Communication Systems (UMCS) - Surrey, BC Thompson Rivers University, Health Sciences Training Centre, Kamloops, BC UBC Aquatic Centre - Vancouver, BC UBC Allard Hall Law Faculty - Vancouver, BC UBC Buchanan A Block - Vancouver, BC UBC Centre for Brain Health - Vancouver, BC UBC Centre for Interactive Research on Sustainability - Vancouver, BC UBC Faculty of Medicine - Vancouver, BC UBC IRC #1, 3, 4, 5 Lecture Theatres, UBC - Vancouver, BC UBC IRC #2 Lecture Theatre, UBC - Vancouver, BC UBC IRC #6 Lecture Theatre, UBC - Vancouver, BC UBC IRC Master Control Room, UBC - Vancouver, BC UBC Pharmaceutical Sciences Centre, - Vancouver, BC UBC Thunderbird Arena - Vancouver, BC UBCO Health Sciences Centre, Kelowna, BC UHNBC Clinical Academic Campus - Prince George, BC VGH Centre for Excellence in Surgical Education & Innovation - Vancouver, BC UVic CARSA Performance Gym - Victoria, BC West Vancouver Community Centre - West Vancouver, BC Projects done between 1991 and 1997 while with BKL Consultants Bill Copeland Sports Complex - Ice Arena - Burnaby, BC Duke Point Ferry Terminal - Nanaimo, BC Good Shepherd Church - Surrey, BC Manitoba Hydro Video Conference Room - Winnipeg, MB Maple Ridge Bandstand - Maple Ridge, BC Muttart Hall - Edmonton, AB Timms Centre for the Arts, U of A - Edmonton, AB All Over the Map Ceiling Speakers... why they are where they are Using the TEF for audio production work Lavalier and lectern mic battle it out Sound systems: Mono vs. Stereo Will that be one mic or two? Classroom Speech Intelligibility Classroom Speech Reinforcement Classroom Speech Intelligibility and Background Noise Loudspeaker Specs - 1998 NSCA Course Calibrated Acoustic String Loudspeaker directivity as a design issue Responding to Tenders Open letter to contractors and manufacturers Really bad examples of system installation Contractor FAQ's and FMS So you want to bid on a sound or A/V project... take the Quiz! Loudspeaker Directivity and Emergency Vehicle Sirens Case Study: Speech Reinforcement Loudspeaker Cluster Reference Books for Audio, Video and Acoustics Providing Speech Intelligibility in Public Spaces Home and Project Studio FAQ The Handy Project Planner The Illustrated Guide to Loudspeaker Health Care Fork Screech Analysis Design Staff - Short Form Resumes Barry McKinnon PDF format C.V. Marcel Schoenenberger PDF format C.V. Kyle Matheson PDF format C.V. Renee Stewart-Smith PDF format C.V. Magazine Articles Systems Contractor News Magazine Article Index Extron: UBC Faculty of Medicine Distributed Medical Program Journal Articles Electro-magnetic Interference in Hearing Aid T-Coil Common Acoustical Problems and 3D Audio Demos Reverberation Time and Speech Speech in 5.0 sec RT WAV (294kB) - MP3 (55kB) Speech in 2.0 sec RT WAV (251kB) - MP3 (48kB) Speech in 1.3 sec RT WAV (184kB) - MP3 (35kB) Speech in 0.8 sec RT WAV (158kB) - MP3 (31kB) Speech in 0.6 sec RT WAV (150kB) - MP3 (29kB) Why does excess reverberation time affect speech intelligibility? JavaScript Quickie 2kHz Reverb Time Calculator early reflections directivity factor JavaScript Speech Intelligibility calculator Late Reflections, or Slap Echoes Multiple arrivals 80-300msec WAV (161kB) 150 Millisecond slap echo WAV (161kB) - MP3 (31kB) Design for Speech Intelligibility Direct sound lacks intelligibility WAV (300kB) - MP3 (57kB) JavaScript Features Javascript Decibel calculators Speech Intelligibility Calculator Speaker Q Calculator Quickie 2kHz reverb time Calculator %ALCONS Calculator Critical Distance Calculator Image Size Calculator Wavelength Calculator Ohm's Law Calculator Sound Contractor Pre-qualification Quiz Contact Information Copyleft Agreement