av 101--the tips & terms you need to know about audio visual technology
DESCRIPTION
Presented by Michael Wohlitz at Freeman's November 2012 Thinking Thursday event.TRANSCRIPT
© 2011 Freeman. All rights Reserved. Proprietary & Confidential.
Michael Wohlitz8 November 2012
Demystifying AV
© 2011 Freeman. All rights Reserved. Proprietary & Confidential.
Michael WohlitzDirector, Corporate Solutions
Office 312.261.6873Cell 847.344.6044
© 2011 Freeman. All rights Reserved. Proprietary & Confidential.
© 2011 Freeman. All rights Reserved. Proprietary & Confidential.
Demystifying Audio
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Demystifying Audio
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• Wired Microphones• Lectern• Table Top
• Wireless Microphones• Video Playback• Instant Replay• CD Player• Computers
Audio Inputs
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• Ingests Multiple Inputs
• Funnels to a few Outputs
• Live, Record, Overflow on Demand
Audio Console
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• Audience versus Room Size
• Line Array• Speakers on Sticks• House Sound
• Front Fill• Fold Back
• Subwoofers• Audio Records
Audio Speaker Systems
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Audio Questions?
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DLP Projector, 1920 x 1080, 14,000 Lumen, 1.6-2.0:1 TLD Zoom, DVI / SDI In
Demystifying Video
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Aspect Ratio = W : H
4 Units Wide3 Units High
Aspect ratio is 4:34 divided by 3 = ~1.33
Warning – Projection Screens are
Defined as Height x Width
Aspect Ratio
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Not About the SIZE of the Screen
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Aspect Ratio Defines the SHAPE of the Screen
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Common Aspect Ratio
4:3 16:9
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Aspect Ratio
1.77 > 1.33 by 25%
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• Old School “Tube” Televisions
• Break Out Room Projectors
• Screens for Break Out Rooms
• Main Tent Projectors Can be 4:3
• Mobile TV
• iPads
Common Aspect Ratios in Video – NTSC 4:3
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• Flat Screen TVs
• Video Monitors
• Main Tent Projectors can be
• Microsoft Surface
Common Aspect Ratios in Video – HDTV 16:9
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Non Traditional Aspect Ratios
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Non Traditional Aspect Ratios
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Electronic Silly Putty
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Electronic Silly Putty
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Electronic Silly Putty
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Electronic Silly Putty
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What Does this Mean to Us?
Video Gutters – 16:9 Video in a 4:3 Space
Video Pillars– 4:3 Video in a 16:9 Space
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ASPECT RATIO - SHAPE of the Screen
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Resolution is the array of pixels used to make a video image
Defined by quantity of Horizontal pixels x Vertical Pixels
Resolution Terminology
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Resolution is the array of pixels used to make a video image
Defined by quantity of Horizontal pixels x Vertical Pixels
Resolution Terminology
28 Cells Wide20 Cells High
Resolution is 28x20
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Resolution Terminology
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Resolution – Lite Brite
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Starts with the Pixel
Pixel – a Picture Element which comprises one single point of a video image
Resolution Terminology
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Resolution is the array of pixels used to make a video image
Defined by quantity of Horizontal pixels x Vertical Pixels
The Higher the resolution the better quality picture
Resolution Terminology
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• Computers• VGA or DVI• Mac or PC• Resolutions and Aspect Ratio
• Tape Decks
• Hard Drive Play Back
• Cameras
• Tablets
Video Inputs
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• Scales the Inputs
• Sends to the Outputs• Screens• DSMs• Record• OverFlow on Demand• Web
Video Switchers
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• LCD• Break Out Rooms• 1024 x 768• Tend to be 4:3 • Less than 8,000 Lumen
• DLP• Mostly in General Sessions• 1920 x 1080 • Tend to be 16:9• Can exceed 30,000 Lumen
Video Projectors
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Maintaining the Anchor Exhibitors
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Digital Solutions
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Video Questions?
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Demystifying Lighting
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Why Lighting
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Why Lighting
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Conventional Lighting
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Intelligent Lighting
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LED & RGB Lighting
R G B
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LED & RGB Lighting
Lighting Technique
Lighting Technique
Lighting Technique
Lighting Technique
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• 3 Fixtures per 8’x8’ area
• 5 Fixtures per Lectern
• Scenic is treated as an additional entity
Lighting Secret Sauce
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Lighting Questions?
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Michael WohlitzDirector, Corporate Solutions
Office 312.261.6873Cell 847.344.6044