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Published byGilbert Ward Modified over 9 years ago
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1 Video for Live Music Performance and Education Stefan Karapetkov Emerging Technologies Director
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2 Polycom
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3 UC Group UC Personal Polycom and Unified Communications Video Content Management and Delivery Universal Scale and Virtualizatio n Management and Reporting Flexible Conferenc e Platforms B2B Communication Application Mobile Applications Tablets /Smart PhonesWiFi / Dect PhonesPersonal Telepresence Business Media Phones Conference Phones Immersive Telepresence Room Telepresence UC Collaboration RealPresence TM Platform
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4 Manhattan
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5 Manhattan School of Music
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6 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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7 Manhattan School of Music
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8 Classical Program at MSM
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9 Jazz Program at MSM – David Liebman
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10 Music Session between MSM in New York and the Australian National University in Canberra
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11 Audio and Video Transmission Basics Concert SiteRemote Site
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12 Video Compression
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13 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 3012864 Up to 50 %! 4CIF30256128 4CIF601024512 720p301024512 720p601512832 1080p3020481024
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14 Audio Compression
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15 Advanced Audio Encoding Data Bit Rate Audio Frequency G.722.1 G.722 AMR-NB G.711 G.722.2 Wideband Narrowband 4 kbps64 kbps128 kbps Siren 14 stereo G.729A G.728 G.722.1C Super Wide Siren 22 stereo 256 kbps G.719 stereo
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16 Giving Audio High Priority Audio Video High priority BandwidthStandard SettingMusic Mode > 1024Siren22 Stereo 128 768 - 1024Siren22 Stereo 96Siren22 Stereo 128 512 - 768Siren22 Stereo 96Siren22 Stereo 128 384 - 512Siren22 Stereo 96Siren22 Stereo 128 256 - 384Siren14 Stereo 48
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17 Automatic Gain Control Signal strength AGC adds 0dB AGC adds 3dB AGC adds 6dB Max. 3,60m from microphone Nominal is 60cm from microphone
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18 Automatic Noise Suppression and Noise Fill Signal White noise Signal Comfort Noise ANS Noise Fill
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19 Acoustic Echo Cancellation AEC Coupling
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20 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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21 Email Stefan.Karapetkov@polycom.com Blog http://videonetworker.blogspot.com/ White paper “Music Performance and Instruction over High-Speed Networks”
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