1 video for live music performance and education stefan karapetkov emerging technologies director
TRANSCRIPT
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Video for Live Music Performance and Education
Stefan KarapetkovEmerging Technologies Director
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Polycom
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UC GroupUC Personal
Polycom and Unified Communications
Video ContentManagement and Delivery
Universal Scale and
Virtualization
Management and Reporting
FlexibleConference Platforms
B2B Communication Application
MobileApplications
Tablets /Smart Phones
WiFi / Dect Phones
Personal Telepresence
Business Media PhonesConference Phones
Immersive Telepresence
Room Telepresence
UC Collaboration
RealPresenceTM Platform
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Manhattan
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Manhattan School of Music
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Manhattan School of Music
International Conservatory of Music (1918)
Offering BM, MM and DMA in Classical & Jazz Music
800+ students from over 48 countries
350 Faculty
400 students in Precollege Division (5-17)
400+ Public Concerts/Year
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Manhattan School of Music
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Classical Program at MSM
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Jazz Program at MSM – David Liebman
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Music Session between MSM in New York and the Australian National University in Canberra
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Audio and Video Transmission Basics
Concert Site Remote Site
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Video Compression
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Video Quality and Required Network Bandwidth
Resolution / Frame
Rate
H.264 Baseline Profile (Industry Norm
Today) Call Speed in kbps
H.264 High Profile Only from
Polycom Call Speed in kbps
Polycom Bandwidth Reduction
CIF 30 128 64
Up to 50 %!
4CIF30 256 128
4CIF60 1024 512
720p30 1024 512
720p60 1512 832
1080p30 2048 1024
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Audio Compression
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Advanced Audio Encoding
Data Bit Rate
Au
dio
Fre
qu
ency
G.722.1G.722
AMR-NB
G.711
G.722.2Wid
eb
an
d
Na
rro
wb
an
d
4 kbps 64 kbps 128 kbps
Siren 14 stereo
G.729AG.728
G.722.1CSu
per
Wid
e
Siren 22 stereo
256 kbps
G.719 stereo
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Giving Audio High Priority
Audio
Video
High priority
Bandwidth Standard Setting Music Mode
> 1024 Siren22 Stereo 128 Siren22 Stereo 128
768 - 1024 Siren22 Stereo 96 Siren22 Stereo 128
512 - 768 Siren22 Stereo 96 Siren22 Stereo 128
384 - 512 Siren22 Stereo 96 Siren22 Stereo 128
256 - 384 Siren14 Stereo 48 Siren14 Stereo 48
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Automatic Gain Control
Signal strength
AGC adds 0dBAGC adds 3dB
AGC adds 6dB
Max. 3,60m from microphoneNominal is 60cm from microphone
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Automatic Noise Suppression and Noise Fill
Signal White noise
Signal
Signal Comfort Noise
ANS Noise Fill
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Acoustic Echo Cancellation
AEC Coupling
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Polycom and MSM have worked closely to develop technology for transmitting live music performances
The most popular applications are music education, instructions, and live concerts
The technology is embedded in the Polycom video portfolio – Music Mode
Short video testimonial
Summary
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Email [email protected] http://videonetworker.blogspot.com/
White paper “Music Performance and Instruction over High-Speed Networks”