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TV Based Video Calling
A Critical Design Analysis Initial Brief from Doug Williams
August 2011
Version 2.1
BT and the TV
• Investment in Fibre
– £2.5Bn
– 11m homes passed
– 750k connected
– 66% homes by 2015
• Investment in TV
– £1Bn sports rights
• £248m/year on football
• £38m/year on rugby
– BT Sports channel
• Multicast
• Jake Humphrey
– Youview
• Scrollback TV
• Freeview HD channels
• Catch up TV: iPlayer, ITVPlayer, 4oD, Demand 5
• Access to new providers such as NowTV
Slide 2
76
Mb/s
19
Mb/s
Humax DTR
T1000
Doug
Multi-party HD Video Calls and Telepresence
Consumer Use Cases
• Kinect – video chat
• Skype 5 way calling free
• Skype 10-way calling subscription based
• Multi-party video chat for consumers and video
conferencing and telepresence for business.
• Personal video chat with friends using multi-feed HD
video conferencing.
• HD telepresence for distributed virtual teams, similar to
iCom providing multi-feed HD video .
• Converged communications using video chat, IM,
media sharing (e.g. Zorap, G Wave)
Devices, Applications and Services
• 40% of Skype calls include video
• Skype, Microsoft, Sony, and Logitech all have high
quality TV based video conferencing systems in the
market today.
• Microsoft Kinect launched in Nov 2010, and have
brought in by stealth, video chat to the TV
Bandwidth Requirements
• Consumer HD Webcam (1280x720p @ 30fps) requires
~ 1.5Mbit/sec upstream
• HD conferencing bandwidth requirement 1-6Mbit/s
• Polycom 720p 30fps duplex from 784kb/s
• Polycom 1080p 30fps from 1Mb/s
• Skype TV offers 720p duplex which requires 1.5Mb/s
upstream
Expected visual quality for HD resolution
1-6 Mbit/sec
1-6 Mbit/sec
Doug
TV Based Video Calling
Slide 5
TV Based Video Calling
Slide 6
Video Quality
Audio Quality
Form factor
Codec improvements (H264), standardisation (HD 720p
1080i etc.) and broadband bandwidth available with Infinity
mean “good” video quality can bb attained.
Microphones are improved. Codecs for high quality audio are
standardised (G722 and AAC hardwired in hardware) and echo
cancellation has been mastered.
Previously video calling was a job for multiple computers.
Moore’s Law means we can now achieve “good” video
quality in a device no bigger than a biscuit.
And the UI’s are getting better too.
Interworking
Who you
gonna call?
This is a remaining risk factor but three options exist to
mitigate this risk:
- go with Skype
- go with Google
- interwork (how?)
Why BT?
• Strong brand match – Communications (our heritage)
– The TV (our new battleground)
– Superfast Broadband (Infinity)
• Opportunity to define role
for directory functions – Own the customer, increase
stickiness
Slide 7
Analyse
• Describe what is already out there:
– Price
– Form
• Aesthetics
• “quality”
• Brand impressions
– Practicalities in use
• The way it physically links to TV
• The way it relates to the TV as a
device and as a service
– Core Experience
• What does it expect of the customer
before they can use it?
• How well does it deliver the core
function? (video chat)
– Commercial success
• Are these successful?
• Which are doing better now?
• Which do you think will succeed in
the long run?
Slide 8
Form a view
• What is it that makes it better?
• What is important?
• What are the better decisions?
Slide 9
• What aspects of the different
options do you like most?
• What aspects of the designs
you have seen would you
want to see in your perfect
device
Form a view
Slide 10
Form a view
• What is it that makes it better?
• What is important?
• What are the better decisions?
Slide 11
• What aspects of the different
options do you like most?
• What aspects of the designs
you have seen would you want
to see in your perfect device?
Form a view
Slide 12
Form a view
• What is it that makes it better?
• What is important?
• When choices have to be made
– what are the better choices?
Slide 13
• What aspects of the different
solution do you admire? (why?)
• Be specific
• Give examples
• Show me
• Provide evidence
Form a view
• What is it that makes it better?
• What is important?
• When choices have to be made
– what are the better choices?
Slide 14
• What aspects of the different
solution do you admire?
(why?)
• Be specific
• Give examples
• Show me
• Provide evidence
Recommend
• If BT were designing from
scratch what choices should BT
make?
Slide 15
• Be specific
• Give examples
• Show me
• Provide evidence
– What would it look like?
– What would the menu structures
look like?
– What would it physically look
like?
– What would differentiate it?
– How would we make it look like a
BT product, make it fit with other
BT products?
Summary
• Review
• Analyse
• Deconstruct
• Form a view
• Imagine
• Synthesise
• Recommend
Slide 16
Contact details
Doug Williams
M 07917 024955
T 01473 647264
Slide 17