AV 101--The Tips & Terms You Need to Know About Audio Visual Technology

© 2011 Freeman. All rights Reserved. Proprietary & Confidential.

Michael Wohlitz8 November 2012

Demystifying AV


Michael WohlitzDirector, Corporate Solutions

Office 312.261.6873Cell 847.344.6044

[email protected]


Demystifying Audio


• Wired Microphones• Lectern• Table Top

• Wireless Microphones• Video Playback• Instant Replay• CD Player• Computers

Audio Inputs


• Ingests Multiple Inputs

• Funnels to a few Outputs

• Live, Record, Overflow on Demand

Audio Console


• Audience versus Room Size

• Line Array• Speakers on Sticks• House Sound

• Front Fill• Fold Back

• Subwoofers• Audio Records

Audio Speaker Systems


Audio Questions?


DLP Projector, 1920 x 1080, 14,000 Lumen, 1.6-2.0:1 TLD Zoom, DVI / SDI In

Demystifying Video


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


Not About the SIZE of the Screen


Aspect Ratio Defines the SHAPE of the Screen


Common Aspect Ratio

4:3 16:9


Aspect Ratio

1.77 > 1.33 by 25%


• 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


• Flat Screen TVs

• Video Monitors

• Main Tent Projectors can be

• Microsoft Surface

Common Aspect Ratios in Video – HDTV 16:9


Non Traditional Aspect Ratios


Electronic Silly Putty


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


ASPECT RATIO - SHAPE of the Screen


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


Resolution – Lite Brite


Starts with the Pixel

Pixel – a Picture Element which comprises one single point of a video image





The Higher the resolution the better quality picture



• Computers• VGA or DVI• Mac or PC• Resolutions and Aspect Ratio

• Tape Decks

• Hard Drive Play Back

• Cameras

• Tablets

Video Inputs


• Scales the Inputs

• Sends to the Outputs• Screens• DSMs• Record• OverFlow on Demand• Web

Video Switchers


• 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


Maintaining the Anchor Exhibitors


Digital Solutions


Video Questions?


Demystifying Lighting


Why Lighting


Conventional Lighting


Intelligent Lighting


LED & RGB Lighting

R G B


LED & RGB Lighting

Lighting Technique


• 3 Fixtures per 8’x8’ area

• 5 Fixtures per Lectern

• Scenic is treated as an additional entity

Lighting Secret Sauce


Lighting Questions?


Michael WohlitzDirector, Corporate Solutions

Office 312.261.6873Cell 847.344.6044

[email protected]

AV 101--The Tips & Terms You Need to Know About Audio Visual Technology

Technology

Transcript of AV 101--The Tips & Terms You Need to Know About Audio Visual Technology