The Enhanced Classroom Development Process: Standards and Practices
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The Enhanced Classroom Development Process: Standards and Practices
Andrew Faunce, Dartmouth CollegeMichael Ney, Gettysburg College
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The Enhanced Classroom Development Process: Standards and Practices
Part I
Design TheoryAndrew Faunce
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Large Screen PresentationHuman Factors
Design Principles
Design Deliverables
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Human FactorsVisual Perception
Aural Perception
Body Size and Movement
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Visual Perception
a(N.T.S.) a
10 Mins. of Arc (V)
¼” Height for Every 7’ DistanceBased on IDEAL ConditionsUnreliable Beyond 90 Degree (H) Viewing
ConeCentral Vision – DetailPeripheral Vision – Motion
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Aural PerceptionDirectional Cues
?
Level Differences Perceived at 2dB
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Body SizeHead Height – 4’0”Eye Height – 3’6”Ear Height – 3’6”
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Body MovementEASY/MAX Head/Eye Movement
HORIZONTAL
35 6030
45
60
VERTICAL
(N.T.S.)
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Design PrinciplesViewing DistancesImage SizeAngles of ViewLine of SightSound System RequirementsSpeaker Performance and Placement
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Most Distant ViewerGeneral ViewingReading/DetailInspection
aX 8 X 6 X 4
= 8 x Screen Height= 6 x Screen Height= 4 x Screen Height
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Screen Height CalculationGeneral Viewing = MDV / 8Reading/Detail = MDV / 6Inspection = MDV / 4
/4/6/8
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Closest Viewer CalculationClosest Viewer = 1 x Screen Width
Screen (top view)
ErgonomicEasy to RememberAll Viewers in 90 degree (H) Viewing Cone
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Angle of View - HorizontalSolving for ALL Possible 90 Degree Viewing Cones
Most ReliableBest for InspectionMost Costly
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Angle of View - HorizontalSolving for 90 degree Viewing Cone
Reliable for Reading and Moderate Detail ViewingUsed Most Often
(1)
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Angle of View - HorizontalSolving for the UNION of all 90 degree Viewing Cones
Acceptable for General Viewing (VIDEO)Less Costly
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Angle of View – Vertical
Section
30
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Sight Lines
Section
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Sound SystemSystem Requirements
Speaker Performance
Speaker Location
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System RequirementsDirectional 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
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Directional Sound
Section
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Distributed Sound
90
-3dB-3dB
S = 1.4 x R
S
R = ceiling ht – 3’6”
R
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Distributed Sound
More Ceiling Height = Wider CoverageZone Speakers Front to Back to Compensate
Section
HC
Proposed Seating - 194
HC
Plan
Zone 1
Zone 3
Zone 2
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Design DeliverablesProgramming:
“Program Statement”Design:
“Design Package” “Not for Construction” Docs
Construction: “Build Package” “Construction” Docs
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Program StatementText Description of Requirements
Room FunctionsSeat Count/ArrangementLogistics of UseSystem PerformanceProvide Examples and as Much Detail as Possible
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AV Design/Build PackageEquipment ListAV Block or Flow DiagramControl Block / Touch Screen LayoutsArchitectural - Plan, Elevations, Section, RCPDetails – racks, plates, mounts, caseworkRiser – conduits, j-boxes, cableServices Provided “By Others”
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PlanScreensViewing Cones (H)SeatingFurnishingsEquipment
Plan
Proposed Seating - 194
HC HC
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Reflected Ceiling Plan (RCP)
ScreensSpeaker LocationsSpeaker CoverageProjector MountsLighting FixturesHVAC VentsSprinkler Heads
HC
Proposed Seating - 194
HC
Plan
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28Front Elevation
ElevationsFront, Side, BackScreensWhiteboard/Lighting
EquipmentFurnishingsControls/Plates
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SectionVertical Angle of ViewLine of Sight
Speaker CoverageProjector Light Paths
Section
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AV Block Diagram
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Control – Touch Screen Layout
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Rack Detail
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Plate Detail
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Casework Detail
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ReferencesInternational 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
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Contact InfoAndrew FaunceInstructional Services/Computing Services - Dartmouth College6195 North Fairbanks - Hanover, NH [email protected]://www.dartmouth.edu/~insvcs/603.646.3614 voice603.646.1343 fax