Industry Standards

Industry standards, guidelines, and best practices:

    • INFOCOMM, AV/IT Infrastructure Guidelines for Higher Education
    • ANSI/INFOCOMM A102.01:2017 Audio Coverage Uniformity  
    • ANSI/INFOCOMM 2M-2010, Standards Guide for AudioVisual systems design and coordination process
    • ANSI/ASA S12.60-2010, Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools 

Quality Management

Quality Management is guided by the Association for Quality in Audio Visual Technology (AQAV and that association's standard)

Room Layout

Classroom

Sightlines -  Sightlines need to be checked in both plan and elevation to ensure all students have an unobstructed view of all areas of the screen. For flat-floor venues with an unobstructed view of the screen, a sensible guideline based on typical ceiling heights and screen sizes is to position the screen so that the bottom edge of the viewable area is no less than 42 in above the floor. If achievable, the preferred height is 48 in or more to provide better clearance over front-of-room furniture. In tiered venues, the distance from the floor may be lowered; however, the decision on the screen position must take into account the potential issue of glare in the presenter’s eyes from the projector. In labs or other spaces where there are obstructions, the screen must be positioned to allow for a clear view over or around the obstructions while at the same time taking into account the maximum allowable viewing angles.

Lectern Position - The lectern is to be positioned in a suitable location in consultation with Learning Space Design. Final lectern position will allow a minimum gap of 48 to 60 inches betweeen the front wall (or other obstruction) and the lectern

Student Seating

AV Closet

  • Reasoning / NVX
  • Location in building / Near IDF 
  • Central AV Closet vs Room-Specific AV Closet
  • Rack Layout
  • Diagram
  • Card Access
  • Pathways

General Display Requirements

Display Sizing 

The calculation of the minimum allowable image height or, conversely, the maximum allowable viewing distance for a given screen height depends on the nature of the material displayed and the intent of the viewer. UITS Learning Spaces recommendations specify two types of viewing tasks that are generally applicable in higher education:

      • Detailed Viewing Tasks (i.e. note taking from text based slides) 
        The height of the projection screen or flat panel display shall be no less than the distance to the least favored viewer (LFV) / furthest audience member divided by 6.
      • Inspection Viewing Tasks i.e. viewing graphic material such as complex mathematical equations, engineering drawings or medical slides containing detailed graphics such as X-Rays)
        The height of the projection screen or flat panel display shall be no less than the distance to the least favored viewer (LFV) / furthest audience member divided by 4. This stricter standard is generally not required unless specifically briefed.

The 6:1 ratio for Detailed Viewing Tasks and 4:1 ratio for Inspection Viewing Tasks should be viewed as an absolute minimum and consideration should be given to a more stringent ratio. Rooms where the ratio between screen height to the LFV is lower than 10:1 are not suitable for instructional purposes. Rooms that cannot meet a minimum of a 6:1 ratio require a consultation.


For non-tiered spaces, the bottom of the viewable image should not be lower than 42" as a minimum, with a preferred height of 48" AFF. In labs or other spaces where there are obstructions, the screen must be positioned to allow for a clear view over or around the obstructions while at the same time staying taking into account the maximum viewing angles. 

The top of the viewable image should be at least 2" below the lowest device in the ceiling structure (light fixtures, sprinkler heads, or diffusers). Every effort shall be made to have ceiling heights that allow the screen sizes described above. 


The table below indicates examples of maximum distances serviced by display sizes shown in 10" variations. Calculations should be performed and confirmed for your specific scenario and display sizes available at that time.
 

Quick Reference Chart for 16:9 Screen Sizing

Diagonal

(inches)


Height

(viewable area

in inches) 

Max Viewing Distance

(6:1)

Max Viewing Distance

(4:1)

43"

22 1/2"135" or 11'-3"90" or 7'-6"
49"25 3/8"152" or 12'-8"v102" or 8'-6"

55"

28 1/8" 

169" or 14'-1"113" or 9'-5"

65"

33"

198" or 16'-6"132" or 11'

75"

38"

228" or 19'152" or 12'-8"
85"43"258" or 21'-6"172" or 14'-4"
98"50.63304" or 25'-4"203" or 16'-11"
119"58"348" or 29' 232" or 19'-4"
133"65"390" or 32'-6"260" or 21'-8"

3.5.2 Usable Seating Area 

The viewing area within 45º of the displayed images axis (center of the screen) is defined as the Good Viewing Area and is preferred for teaching and learning spaces.The angle is measured from a perpendicular line to the screen axis from the edge of the screen.

The viewing area within 45º of the displayed images edge is defined as the Acceptable Viewing Area. 

Any room seats outside of the usable seating area shall be supported with additional display devices.


Horizontal Viewing Angle diagram:

 

Good Viewing Area  

 Acceptable Viewing Area


Vertical Viewing Angle 

The maximum vertical viewing angle should be no more than 15º to the center of the image, measured from perpendicular at seated eye height (50 in [1270 mm] above finished floor level) from the front row center seat (see figure below). For tight spaces, this rule may be relaxed to a maximum angle of  25º to the top of the screen.

Additionally, the distance to the first row should be no less than the image width, which allows viewers to see the entire screen within a natural field of vision. This will allow the user to view the entire screen without moving his/her head.


Vertical Viewing Angle

Vertical Viewing Angle 



AV Control and Switching

AV Control

          • AV control equipment is exclusively Crestron unless otherwise specified by UITS Learning Space Design.
          • Fusion Monitoring
          • Emergency Notifications

AV Switching

          • Crestron preference, Extron substitution with LSDG approval
          • HDCP compliance with full key management on all inputs and outputs
          • EDID management
          • Scaling/frame rate conversion
          • Audio de-embedding
          • Color space management

Audio

Program Audio

Voice Reinforcement

Microphones

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