Emerging Video Technologies &Trends in Education

Presented byTodd Johnson

Director of Academic Solutions Group

Alpha Video & Audio, Inc. is a leading national audiovisual

integrator and was selected by Commercial Integrator magazine as one of the Top Five K-12 integrators in the country in 2012.

Your Technology Divisions

• Division 27 – AV Technology• Division 28 –Life Safety• Division 29 –Other (TV Studio, Video Over IP…)• Bid Your Divisions as Prime

– DO NOT BID THROUGH ELECTRICAL– Electrical is Division 26

• Require Performance Bond of Prime Bidder• Do NOT let Your Technology Divisions bid through Electrical

Contractor (Div 26)• Saves Money and LOTS of Headaches!

Emerging Presentation Technologies & Trends in Education

• Analog Sunset– VGA and Analog connectivity eliminated on current

devices– HDMI (High Bandwidth Digital Multi-Media Interface– HDCP (High Bandwidth Digital Copy Write Protection)– Duplicate Protection AND Multi-Screen Protection

HDMIVideo

7.1 audioHDCPEDIDCEC

HDMI / DVI / DisplayPort

DVIVideo------

HDCP *EDID------

DisplayPortVideo

7.1 audioHDCPEDID------

* Optional and not supported on most DVI extenders

What is Driving the Future of AV?

• CONTENT – Where does it come from?– User computers– Video playback devices

• Cable feed• Blu-ray and DVD disc players• Video Teleconferencing CODECs

– Cameras

5

Computer Evolution• PC Manufacturers (and Apple) want

two things:– Lower cost– Small form factor

• RGBHV is expensive and big

• Manufacturers are moving towards DisplayPort / Mini DisplayPort

6

Video Playback Device Evolution

• Content providers want one thing: control over their content

• HDCP is the industry standard

• HDCP requires a digital video format (i.e. HDMI, DVI, DP)

7

Say “Goodbye” to analogContent providers have embraced HDCP and manufacturers have embraced DisplayPort and HDMI

Content provider support and set-top boxesMPAA (Motion Picture Association of America) is petitioning

the FCC to block movies from being transmitted via analog outputs

Feature support1080p and Deep Color are only supported by HDMI formats

Apple MacBook

HDCP• The role of HDCP (High

Definition Content Protection) is to prevent interception and copying or other unauthorized use of this bitstream

The content protection chain

HDMI Distance and Cable Limitations

• HDMI signals degrade quickly - distance limitations become an issue

HDMI connectors can’t be easily field terminated» Difficult to run through walls

HDMI

How Does HDCP Work?

HDMI

How Does HDCP Work?

Slow HDMI Switching = a Bad User Experience

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Switching HDMI to Multiple Displays = Problems

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Click

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Using a standard HDMI switcher

HDMI Pre-Authorized Keys

HDMI12

Content cannot

Be displayed

Content cannot

Be displayed

HDMI Sources Have Display Limitations

E-EDID

ENHANCED Extended Display Identification Data

Multiple Displays = EDID Resolution Conflicts

1080p2Ch Audio

1080i2Ch Audio

5.1Ch Audio

EDID

EDID EDID

EDID

What to send to the source?

Top 10 Professional System Challenges

1. Cable installation (infrastructure)

2. Seamless support for analog and digital

3. HDCP (High Definition Content Protection)

4. Slow switching5. Managing resolution

and format (EDID)

6. Managing audio7. Managing consumer

electronics control (CEC)

8. Distance limitation9. Expandability10. Testing and

troubleshooting

Summary –Check List

• HDMI at Wall Plate• HDMI on Projector/Display• # of Simultaneous Displays• # of Sources• Types of Sources• Speed of Switching Required

Thank You! Questions?Presented byTodd Johnson

Director Academic Solutions

Alpha Video & Audio, Inc. is a leading national audiovisual integrator and was selected by Commercial Integrator magazine

as one of the Top Five K-12 integrators in the country in 2012.