1. Live Music Mode: Case Study and Development Performing Arts Production Workshop Trieste, Italy 14 July 2009 Stefan Karapetkov Emerging Technologies Director Polycom

2. 2 Manhattan School of Music

3. 3 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

4. 4 Manhattan School of Music

5. 5 Core Philosophy and Technologies Live, interactive audio-visual communication in virtual environment  Connect, Interact, Listen, Learn Integration of standards-based, interoperable collaboration video solutions in real time Group-based videoconferencing Live web streaming - archival video  distancelearning.msmnyc.edu/live

6. 6 Pinchas Zukerman at Canada Art Centre Teaches a Student in New York

7. 7 Classical Program at MSM

8. 8 Jazz Program at MSM

9. 9 Video Network Elements Personal Telepresence Room Based Telepresence Soft Client Recording Video Border Proxy Media Servers Management Application Gateways Directory Presence Content MgmtGK/Proxy

10. 10 Audio and Video Compression Concert SiteRemote Site

11. 11 Advanced Audio Compression Technology 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 G.719 stereo Siren 22 stereo

12. 12 Audio Codec Highlights BandwidthBit rateDelayComplexityStandardAlgorithm SIREN2222 kHz 32-64 kbps mono 64-128 kbps stereo 40 ms18.4 MIPSN/ATransform G.71920 kHz 32-128 kbps mono 64-256 kbps stereo 40 ms17.7 MIPSITUTransform MP3≤ 20 kHz64-384 kbps≥ 54 ms> 100 MIPSISOTransform MPEG-4 AAC-LD ≤ 20 kHz 24-192 kbps (TAA: 64 kbps mono 128 kbps stereo) ≥ 20 ms> 130 MIPSISOTransform

13. 13 Automatic Gain Control (AGC) Signal strength AGC adds 0dB AGC adds 3dB AGC adds 6dB Max. 12 feet from microphone Nominal is 2 feet from microphone

14. 14 Automatic Noise Suppression (ANS) & Noise Fill Signal White noise Signal Comfort Noise ANS Noise Fill

15. 15 Acoustic Echo Cancellation (AEC) Echo AEC Coupling

16. 16 Advanced Video Technology: High Definition Quality Bandwidth 384kbps 512kbps1Mbps 6Mbps 480p 720p CIF SD HD 352x288 704x480 1280x720 1080p 4K 1920x1080 3840x2160

17. Email Stefan.Karapetkov@polycom.com Blog http://videonetworker.blogspot.com/