Installation guide
VoiceLift Microphone Installation • Introduction — Planning
1-3
Room considerations
Room factors to be considered should include, but are not confined to:
•  Room conguration
  Room size, orientation, and layout
  Location of windows, doors, skylights, etc., for potential light interference
  Alcoves, bays, or sheltered areas
 Location of any dark or covered walls (Dark surfaces reduce reflection of the IR signal.)
  –  Wall art
–  Curtains/blinds 
–  Acoustical panels 
–  Wall material/texture
•  Line-of-sight obstructions between microphone and receiver
    Existing movable furniture (desks, tables, podiums)
    Existing installed furniture (bookcases, racks, cabinets, workbenches, sinks, etc.)
    Support pillars
    Projector
•  Ceiling and wall type (important in assessing the installation hardware needed)
  Ceiling type (drop, spline, hard lid, etc.); structural type (wood, concrete, trusses)
  Wall type (drywall, cement, brick, etc.)
•  Receiver location
   Best location: on the ceiling, at the middle of the classroom 
    If ceiling mounting is not possible, place high and centered on the longest wall.
    Locations to avoid:
    –  Places where line of sight could be obstructed; e.g., too close to the projector 
  –  Corners of the room 
  –  On walls, at less than 6' or more than 12' up from the base 
  –  Areas that receive direct sunlight
Student Desks
Teacher’s Desk
TV / VCR / DVD
Inputs
Screen/White 
Board Location
MLC Controller
Location
PVT A/V Wallplate Location
Projector/
Switcher
Location
Speaker
Locations
Potential 
VLR 102 IR 
Receiver 
Locations
Example of a classroom installation










