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The Enhanced Classroom Development Process: Standards and Practices. Andrew Faunce, Dartmouth College Michael Ney, Gettysburg College. The Enhanced Classroom Development Process: Standards and Practices. Part I Design Theory Andrew Faunce. Large Screen Presentation. Human Factors
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The Enhanced Classroom Development Process: Standards and Practices Andrew Faunce, Dartmouth College Michael Ney, Gettysburg College
The Enhanced Classroom Development Process: Standards and Practices Part I Design Theory Andrew Faunce
Large Screen Presentation Human Factors Design Principles Design Deliverables
Human Factors Visual Perception Aural Perception Body Size and Movement
10 Mins. of Arc (V) ¼” Height for Every 7’ Distance a (N.T.S.) a Visual Perception Based on IDEAL Conditions Unreliable Beyond 90 Degree (H) Viewing Cone Central Vision – Detail Peripheral Vision – Motion
? Aural Perception Directional Cues Level Differences Perceived at 2dB
Body Size • Head Height – 4’0” • Eye Height – 3’6” • Ear Height – 3’6”
HORIZONTAL VERTICAL 30 35 60 45 60 (N.T.S.) Body Movement EASY/MAX Head/Eye Movement
Design Principles • Viewing Distances • Image Size • Angles of View • Line of Sight • Sound System Requirements • Speaker Performance and Placement
a X 8 X 6 X 4 Most Distant Viewer • General Viewing • Reading/Detail • Inspection = 8 x Screen Height = 6 x Screen Height = 4 x Screen Height
/4 /6 /8 Screen Height Calculation • General Viewing = MDV / 8 • Reading/Detail = MDV / 6 • Inspection = MDV / 4
Screen (top view) Closest Viewer Calculation Closest Viewer = 1 x Screen Width Ergonomic Easy to Remember All Viewers in 90 degree (H) Viewing Cone
Angle of View - Horizontal Solving for ALL Possible 90 Degree Viewing Cones Most Reliable Best for Inspection Most Costly
Angle of View - Horizontal Solving for 90 degree Viewing Cone (1) Reliable for Reading and Moderate Detail Viewing Used Most Often
Angle of View - Horizontal Solving for the UNION of all 90 degree Viewing Cones Acceptable for General Viewing (VIDEO) Less Costly
Sound System System Requirements Speaker Performance Speaker Location
System Requirements Directional Sound • Location Cues Important (Videos) • Speakers Mounted Near Screen • High Ceilings w/ Line of Sight to Viewers Distributed Sound • Location Cues Not Important • Ceiling Speakers (typical) • Low Ceilings or Interrupted Line of Sight
R = ceiling ht – 3’6” S = 1.4 x R 90 -3dB -3dB S R Distributed Sound
Distributed Sound • More Ceiling Height = Wider Coverage • Zone Speakers Front to Back to Compensate Zone 3 Zone 2 Zone 1
Design Deliverables Programming: • “Program Statement” Design: • “Design Package” • “Not for Construction” Docs Construction: • “Build Package” • “Construction” Docs
Program Statement Text Description of Requirements • Room Functions • Seat Count/Arrangement • Logistics of Use • System Performance Provide Examples and as Much Detail as Possible
AV Design/Build Package • Equipment List • AV Block or Flow Diagram • Control Block / Touch Screen Layouts • Architectural - Plan, Elevations, Section, RCP • Details – racks, plates, mounts, casework • Riser – conduits, j-boxes, cable • Services Provided “By Others”
Plan • Screens • Viewing Cones (H) • Seating • Furnishings • Equipment
Reflected Ceiling Plan (RCP) • Screens • Speaker Locations • Speaker Coverage • Projector Mounts • Lighting Fixtures • HVAC Vents • Sprinkler Heads
Front, Side, Back Screens Whiteboard/Lighting Equipment Furnishings Controls/Plates Elevations
Vertical Angle of View Line of Sight Speaker Coverage Projector Light Paths Section
References • International Communications Industries Association (ICIA) www.icia.org • Angles of View – DA-LITE Screen Company www.da-lite.com • Time-Saver Standards for Interior Design and Space Planning, De Chiara
Contact Info Andrew Faunce Instructional Services/Computing Services - Dartmouth College 6195 North Fairbanks - Hanover, NH 03755 andrew.g.faunce@dartmouth.edu http://www.dartmouth.edu/~insvcs/ 603.646.3614 voice 603.646.1343 fax