Achieving an Excellent Visual Presentation
By | December 21, 2009
Displays can be difficult at the best time when there is a lot riding on the result, so the very last thing you want to be troubling about is the audio visible component. In this article I will present some basic guidelines that will help you set the room layout so you can achieve the best quality projection from your presentation.
General Guide-Lines
Viewing
* For optimum viewing, the audience should be seated within:
* +30 degrees of a line perpendicular to the screen’s centre.
* They should be seated no closer then twice the image height.
Note: (If this is not possible perhaps consider multiple viewing options for the audience).
Type of Content
* Entertainment - The last row should be no further than eight times the image height.
* Corporate - The last row should be to six times the image height.
* Critical Applications - The last row should be four times the image height
Setting the Screen
To avoid obstruction of viewing he bottom of the screen should be roughly four feet above the floor. If the seating is staggered, or if the floor is raked you can adjust this appropriately. Try avoiding setting the screen to high. The ergonomics associated with cushty viewing indicate no spectator should have to rotate their head more than +30 degrees from straight ahead, or lean their head not more than 25degrees from horizontal.
Seating
The look of the seating is critical so viewers can gain full sight of the projection. Regularly the staggered seating arrangement is most suitable for most situations. Overall they must be in rows, with the minimal unobstructed horizontal clearance between plumb lines from the front of an unoccupied seat to the back of the seat in front. This clearance may change, but is typically sixteen inches ( 400mm ). Aisles must be provided so that there are only 7 seats between any one seat and an aisle. The entry and exit doors must be consider when coming up with the layout of the seating. The layout desires to designed to:
* Allow for easy of enter into the room
* Allow for quick exit in the event of an emergency
* The row contains no more than 100 seats;
* Each doorway serves no more than three rows.
* Aisles must terminate in a cross-aisle.
Front or Rear Projection?
There are a variety of factors that may determine whether front or rear projections are best suited for your shows.
Front Projection
* Front Projection can generally provide a wider viewing-angle than rear projection. It requires: Controlled lighting (ambient light must be kept off the screen to eliminate a reduction in contrast ratio).
* Requires either a projection room at the rear of the theatre, or a platform or mount for the projector(s) out in the theatre. Note that this latter is a potential noise source.
* The projection geometry must be carefully worked out to get the best compromise between image keystoning and blockage of the light path by the audience.
* Must be accessible for maintenance. A projection booth must be dust free (positive pressure preferred), and have adequate ventilation.
Rear Projection
- Rear projection room must be dust free, and have adequate ventilation.
- Rear Projection Generally has a narrower viewing-angle than front projection - better for long, narrow rooms.
- Can be viewed with higher levels of room illumination, and is less immune to “wash out” by ambient lighting.
- Requires space behind the screen. Mirrors may be used to reduce the required depth. Must be accessible for maintenance.
To decide whether front or rear projection will enhance your presentation, ask ‘What kind of presentation do iwant to give’ and “What is the purpose of the show’. If for example the show is “canned” you can consider either front or rear projection. If a live talker is interacting with the presentation, rear projection is best so that the spokesperson can interact with the images without being in the projector’s light trail. In addition, the higher allowable room illumination allows for note-taking, for example.
Screen Width
Determine your minimum screen height based totally on the distance to your farthest spectator and your ceiling height. This figure may be changed based on the application ( e.g. : an entertainment application will need abigger than minimum size screen for impact ).
ADA necessities
Where required agreements will need to be made for attendees who need wheelchair access, and / or who have visual or hearing impairments The accessibility and size of these spaces is defined as :
A minimum number of aisle seats will be required to have either no aisle-side armrest or an aisle-side armrest that folds up. Certain extra signage may be needed. Your sound system will need the addition of a hearing-assisted system. Your emergency systems may need the addition of strobe signals or visual messaging systems. Your video and other visible show systems may need captioning.
Miscellaneous Considerations
Equipment location
Is crucial to avoid any damage. This is usually, but not always, located at the projector ( s ). This gear may include projection controllers, a show controller, video equipment, and audio equipment.
Adequate power supply
do not forget to provide adequate electrical power for this equipment and the projector ( s ). Do not forget to allow conduit for speaker cables, control signals, for example. For boardrooms and meeting rooms you’ll also need to provide accessible sources ( such as VCR’s and DVD players ).
Aesthetics or Theme
* Does it require the loudspeakers and other equipment be concealed?
* How is the presentation started?
* Automatically,
* Audience-demand,
* Host-demand, and live presenter (may require random-access control or other interactivity).
Whether your presentation is for the manager or for a large concern, taking a minute to plan how you want to deliver the data can make a major difference to your audience. So take a moment a review what you are desiring to say, how you want to point out it and how is the best way for your audience to get it. It might make the difference between wining that new job or losing it.
For more information about Audiovisual Equipment Hire Rockingham or Jukebox Hire in Rockingham and lighting hire Mandurah, visit the Peel AV website today.
Article by John Black
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