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Agenda

Windows Media 7 Authoring: Capturing from Screen, Live and Pre-Recorded Media 7-333 Oliver Pribramsky Program Manager Windows Media Microsoft Corporation. Agenda. Windows Media Tools v4.1 Customer scenarios Business opportunity Windows Media solution Best practices for deployment

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Agenda

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  1. Windows Media 7 Authoring: Capturing from Screen, Live and Pre-Recorded Media7-333Oliver PribramskyProgram ManagerWindows Media Microsoft Corporation

  2. Agenda • Windows Media Tools v4.1 • Customer scenarios • Business opportunity • Windows Media solution • Best practices for deployment • Windows Media Encoder v7 • Customer scenarios • Business opportunity • Windows Media solution • Best practices for deployment • Resources

  3. Encoding To Windows Media Live Distribution Streaming from a WM Server Live Content Production Workstation Encoder or Tool Input Live Feed Windows MediaServices • Live • No Editing • Time! • MPU • Multiple encoders Stored WM File Web Server Download & Play Streaming from a Web Server Stored Content: DAT, Beta, DV, CDROM, DVD • Multiple bit rate • Single stream for web server and download and play

  4. Video Capture • Beta • Capture full-size, full-framerate • Deinterlace • DV • Use progressive scan if possible • Film • Inverse Telecine (24fps progressive) • Crop off letterbox borders

  5. Clean Up Your Video! • Deinterlace / inverse telecine • Crop off black edges! • High-quality scaling • Boost contrast • Noise reduction vs. blurring

  6. Image Settings • Image size • Doesn’t have to be 4:3 aspect ratio • Frame rate= even divisor of source • NTSC = 30 -> 15, 10, 7.5, 6, 5 • PAL = 25 -> 12.5, 6.25, 5 • Film = 24 -> 12, 8, 6 • Datarate • You never get 100%

  7. Compression Settings • Video quality = fps vs.clarity • Intelligent streaming • Safety margin for net congestion • Scales to a range of connections

  8. Windows Media Video Guidelines Microsoft MPEG4 v3

  9. Input Guidelines Audio • Get a good soundcard • Sound Blaster Live, Echo Darla, Gina, Layla • Record at 44.1 kHz, 16-bit or better • Use a mixer • Mackie 1202 VLZ, Samson Mixpad 9 • Use good speakers • Event, KRK, Alesis, Mackie • Use a good microphone • Expect to pay at least $50 • Set audio levels correctly • Make it hot, but not too hot

  10. Noise Removal • Avoid Noise If Possible • Record from a good source and avoid background noise • Common Noise Problems • Broadband: Tape hiss, Fan noise, Air conditioners, 60 Hz electrical • Digital Clipping: Recorded too loud or improperly mixed • Clicks, Pops and Crackles: Vinyl, editing and digital errors • Background Noise: Trains, Planes and Automobiles • Use Sonic Foundry Noise Reduction • Four plug-ins designed for different types of noise

  11. Dynamic Range • Use a Dynamic Compressor • Evens out audio levels • Only necessary if it has not been done previously • Normalizing • Peak normalize to maintain dynamics • Normalize to –1.5 dB ‘peak’ to keep codecs from clipping • RMS normalize to make different files sound equally loud • Normalizing to –15 to –12 dB RMS is fairly common • Peak Limiters make content REALLY loud at the same volume • Frequency dependant dynamics • Sibilances and Plosives – Use Multiband Dynamics

  12. Windows Media Audio Guidelines

  13. Creating Content with Windows Media 4.1 • Comprehensive suite of tools included: • Windows Media Encoder • Windows Media On-Demand Producer • Windows Media Author • PowerPoint 2000 • Terran Interactive Media Cleaner EZ for Windows Media • Integral support for: • Advanced audio and video CODECS • Intelligent Streaming • Synchronized Multimedia • Great third party tools

  14. Windows Media Encoder 4Encoding engine for Live (and on-demand) • User-Friendly UI • Template-based output • New controls for Intelligent Streaming • Author and store live content • Mix with scripts and urls on the fly • Encode live or AVI, WAV and MP3 files to Windows Media

  15. Start, stop, record to ASF Control and get information on a wide variety of properties: Bandwidth of encoding stream State (start, stop, recording, etc.) Source code kit available for advanced applications Encoder Automation Windows Media SDK • Remote control of encoder (and interfaces) • Real time insertion and synchronization of arbitrary data and script commands

  16. Windows Media On-Demand Producer • Easy ONE STEP encoding of audio/video • Add Table of Contents(Markers), URL flips and closed captioning • Excellent Video Controlsand Audio enhancements • Batch Encoding supported • Includes HTML Templates

  17. Adobe Premiere Export Plug-In • Easy Windows Media file creation for the #1 video editing tool • Encode to WindowsMedia directly fromwithin Premiere • Common Templatestream formats • Easy steps to testand edit ASFs

  18. Live Encoder ConfigurationHardware requirements • Rules of Thumb • Higher quality (high bit rates) require more power • Multiple or Fast processors make better encoders • You can never have enough network bandwidth • For best results, use Windows 2000 Professional • Audio/Video Capture cards • ViewCast.com Osprey-100: recommended capture card • You’ll need a Sound Card though… • Use a SoundBlaster-16 compatible card (onboard OK) • If you’re buying new, SoundBlaster Live is a great card…

  19. Windows Media Technologies 7 Internet BroadbandReady Highest Quality Audio & Video Easiest to Use& Extend Industrial StrengthSecurity Highest Scalability& Reliability

  20. Highest Quality Audio & Video Windows Media Technologies 7 Windows Media SDK Windows Media Format Windows Media Encoder Windows Media Player Windows Media Rights Manager Windows Media Services

  21. Windows Media Encoder 7 An easy to use powerful production tool for converting both live and pre-recorded audio and video to Windows Media • Improved ease of use and production • Improved encoding capabilities • Improved programmability, administration, and delivery

  22. WM Encoder 7Improved Ease of Use and Production • Session wizard, profile creation and management • Create custom session and profile settings • Visual feedback and real-time controls for encoding and statistics • Enables greater monitoring of encoding process • On-the-fly Source-switching • Ability to define multiple sources • Switching enables greater control and production of live events • Separate archive controls • Archive pause and auto archive of sources

  23. WM Encoder 7Improved Encoding Capabilities (1 of 2) • Support for processing of de-interlacing and Inverse Telecine • Produces higher quality output from interlaced (NTSC and PAL) content • Produce higher quality output of film-sourced material • Improved Output quality • Support for the new Windows Media Format codecs • Support for high motion content: 320 x 240 x 60 fps from interlaced source • Improved quality at 640 x 480 x 30fps

  24. WM Encoder 7Improved Encoding Capabilities (2 of 2) • Enables screen capture to file and real-time broadcast • Simple process for creating screen capture and application demos • Supports leading video cards • Including the new Viewcast.com Osprey 500WM.DVPro. Digital inputs and on-board cababilities enable hardware decoding, scaling and capture in real-time to a streaming media format! • And many others including Winnov, Hauppage, ATI, Intel • Time compression at encode time • Time compression and pause removal reduces playback time

  25. WM Encoder 7Improved Programmability, Administration and Delivery (1 of 2) • Improved Encoder SDK for full encoder automation • Access to Encoder UI, engine control, inputs and outputs, source creation and switching… • Remote administration capabilities • Full access to administer encoder remotely • Admin encoders on the LAN (DCOM) • Remotely admin encoders over the Internet with full encoder functionality (ASP) • Improved Content delivery via unicast, now up to 50 streams • Increased distribution capacity • Allows distribution of up to 50 simultaneous Windows Media streams directly from the Encoder

  26. A Host of Powerful Third-Party Tools Extend Authoring Functionality

  27. Resources • Windows Media Developer Center • http://msdn.microsoft.com/windowsmedia • External resources • www.Terran.com/codecs

  28. Windows Media @TechEd • Windows Media 7: Platform Overview • Monday 6/5 12noon • Incorporating Windows Media Into Web Sites • Monday 6/5 5pm • Hosting Windows Media: Best Practices • Tuesday 6/6 315pm • Creating Skins for the Windows Media Player 7 • Wednesday 6/7 430pm • Windows Media SDK: Under the Hood • Thursday 6/8 315pm • Digital Rights Management • Thursday 6/8 430pm • Windows Media Authoring: Capturing from Screen, Live & Pre-Recorded Media • Thursday 6/8 615pm

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