2 audio video

1Under Embargo until 6:00pm PDT 9/4/02

Windows Media Audio & Windows Media Audio & Video 9 SeriesVideo 9 Series

정지영 대리정지영 대리Technical SpecialistTechnical Specialist

Microsoft KoreaMicrosoft Korea

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WM Audio & Video 9 WM Audio & Video 9 Series Series Key Design PillarsKey Design Pillars

Best AudioBest Audio

Best VideoBest Video

Support for Support for Embedded &Embedded &

DevicesDevices

• Improve quality/efficiencyImprove quality/efficiency• Extend the family to multi-channel/high resolution audioExtend the family to multi-channel/high resolution audio• New innovation in voice and music compressionNew innovation in voice and music compression

• Improve quality at all ratesImprove quality at all rates• Enable HD playbackEnable HD playback• Improved decoding performanceImproved decoding performance• Enable hardware (encode/decode) implementationsEnable hardware (encode/decode) implementations

• Enable efficient hardware implementationsEnable efficient hardware implementations• Strong collaboration with partners for both PC peripherals and Strong collaboration with partners for both PC peripherals and

non-PC devices/chipsnon-PC devices/chips

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WM Audio & Video 9 WM Audio & Video 9 SeriesSeriesNew family of codecsNew family of codecsWindows Media Windows Media

Video 9Video 9Windows Media Windows Media Video 9 Video 9 ProfessionalProfessionalWindows Media Windows Media Video 9 ScreenVideo 9 ScreenWindows Media Windows Media Video 9 ImageVideo 9 Image

Windows Media Windows Media Audio 9 Audio 9 Windows Media Windows Media Audio 9 Audio 9 ProfessionalProfessionalWindows Media Windows Media Audio 9 Audio 9 LosslessLosslessWindows Media Windows Media Audio 9 VoiceAudio 9 Voice

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Windows Media Video 9 Windows Media Video 9 State-of-the-art Video compression engineState-of-the-art Video compression engine

Great quality from wireless Great quality from wireless dial-up dial-up high- high-definition videodefinition video

160x120 @10kbps 160x120 @10kbps 1920x1080 (1080i/p) @ 3-20 1920x1080 (1080i/p) @ 3-20 Mbps+Mbps+

Superb compression efficiencySuperb compression efficiencyThree times as good as MPEG-2:Three times as good as MPEG-2:

Windows Media HD Video (1280x720p) at SD DVD rates Windows Media HD Video (1280x720p) at SD DVD rates (4-6 Mbps)(4-6 Mbps)Windows Media SD Video at DVD resolution (720x480p) Windows Media SD Video at DVD resolution (720x480p) at 2 Mbps (vs. 6 Mbps)at 2 Mbps (vs. 6 Mbps)

Twice as good as MPEG-4Twice as good as MPEG-415% to 50% improvements over WMV 815% to 50% improvements over WMV 8New professional level profiles for high data rate SD New professional level profiles for high data rate SD and HDand HD

Broadcast-readyBroadcast-readySupport for native-interlacingSupport for native-interlacing

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Windows Media Video 9 Windows Media Video 9 Video SmoothingVideo Smoothing ( (Frame Frame Interpolation)Interpolation)Generates missing frames at playback timeGenerates missing frames at playback time

Can double or triple the decoded frame Can double or triple the decoded frame raterateImproves perceived video quality/motion Improves perceived video quality/motion smoothness smoothness Especially useful at lower data rates Especially useful at lower data rates where full frame rate is difficult to achievewhere full frame rate is difficult to achieve

Technology can also be used to save Technology can also be used to save bandwidth bandwidth

Video can be encoded at lower data/frame Video can be encoded at lower data/frame raterateE.g. ICP encodes 15 frames/sec, but user E.g. ICP encodes 15 frames/sec, but user of WM9 Player will experience 30 fpsof WM9 Player will experience 30 fpsBandwidth reduction reduces operating Bandwidth reduction reduces operating cost for ICPscost for ICPs


Windows Media Video Windows Media Video 99DEMODEMO

vs. QuickTime 6/MPEG-4 vs. QuickTime 6/MPEG-4 Video SmoothingVideo Smoothing

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Windows Media Video 9 Windows Media Video 9 ScreenScreenHighly efficient compression engine for Highly efficient compression engine for “palletized video”“palletized video”

Typical scenario is capturing application/desktop Typical scenario is capturing application/desktop output for training/demooutput for training/demoEntire desktop can be compressed and Entire desktop can be compressed and transmitted at rates as low as 28kbps!transmitted at rates as low as 28kbps!

Original Version (V7) shipped in 2000Original Version (V7) shipped in 2000Version 9 improves in both picture quality Version 9 improves in both picture quality and CPU usageand CPU usage

More efficient handling of continuous-tone images More efficient handling of continuous-tone images and window dragging/scrollingand window dragging/scrollingResults in far higher frame rateResults in far higher frame rate


Windows Media Video 9 Windows Media Video 9 ScreenScreenDEMODEMO

WMV 9 ScreenWMV 9 Screen

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WMA 9 Professional WMA 9 Professional NewNew high-performance audio codec to handle high-performance audio codec to handle greater than CD resolution/channelsgreater than CD resolution/channels

Up to 96Khz sampling rate, 24-bits, and 8 channels Up to 96Khz sampling rate, 24-bits, and 8 channels (“7.1”)(“7.1”)

CD is stereo at 44Khz using 16-bit samplesCD is stereo at 44Khz using 16-bit samples

Target application is multi-channel music Target application is multi-channel music distribution and movie sound tracks at distribution and movie sound tracks at broadband ratesbroadband rates

Current multi-channel unsuitable due to high data Current multi-channel unsuitable due to high data rate rate E.g. minimum of 384kbps for DolbyE.g. minimum of 384kbps for Dolby

Leaves too little for video on typical DSL/cable Leaves too little for video on typical DSL/cable connectionconnection

WMA Pro can handle 5.1 from just 128kbps WMA Pro can handle 5.1 from just 128kbps

Multiple encoding modes including 2-pass/VBRMultiple encoding modes including 2-pass/VBR


WMA 9 ProfessionalWMA 9 ProfessionalDEMODEMO

WMA 9 ProfessionalWMA 9 Professional 192K WMA Pro 5.1 vs. 192K 192K WMA Pro 5.1 vs. 192K MP3 MP3

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Windows Media Audio 9 Windows Media Audio 9 Lossless Lossless MathematicallyMathematically losslesslossless audio compression audio compression

““Rip once” – preserves full fidelity of the Rip once” – preserves full fidelity of the originaloriginal

Decoded stream matches the original Decoded stream matches the original bit-for-bitbit-for-bit

Customers no longer have to worry about Customers no longer have to worry about ripping with ever improving audio codecsripping with ever improving audio codecs

Range: CD resolution to 24-bit/96Khz/7.1Range: CD resolution to 24-bit/96Khz/7.1Compression ratio is 2:1 for CD sourceCompression ratio is 2:1 for CD source

Good fit for ever increasing PC hard disks (200 CDs in Good fit for ever increasing PC hard disks (200 CDs in 50GB hard disk)50GB hard disk)Competitive with top lossless audio codecs, e.g., Competitive with top lossless audio codecs, e.g., Monkey, LPAC, MLP (DVD-Audio)Monkey, LPAC, MLP (DVD-Audio)

Compression ratio improves as Compression ratio improves as resolution/sampling rate/channel count resolution/sampling rate/channel count increases because of increased redundancyincreases because of increased redundancy

Integrated into Windows Media Player 9 CD Integrated into Windows Media Player 9 CD copy functioncopy function

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Windows Media Audio 9Windows Media Audio 9Third iteration of Third iteration of backward compatiblebackward compatible improvements to WMAimprovements to WMA

20% quality improvement over WMA 8 without 20% quality improvement over WMA 8 without changing decoded stream syntaxchanging decoded stream syntaxCompatibility key to satisfying non-PC Compatibility key to satisfying non-PC devices/partnersdevices/partners

New encoding modes deliver even better New encoding modes deliver even better soundsound

Quality-based VBR modeQuality-based VBR modeUser can select quality instead of bit rateUser can select quality instead of bit rate

““Perceptually lossless” modePerceptually lossless” modeHighest quality VBR encoding modeHighest quality VBR encoding modeIndistinguishable from the original even for most Indistinguishable from the original even for most audiophiles audiophiles TypicalTypical compression ratio of 5:1 compression ratio of 5:1Available as a ripping option in Media Player 9Available as a ripping option in Media Player 9

2-pass mode, applies to both CBR and VBR2-pass mode, applies to both CBR and VBR

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Windows Media Audio Windows Media Audio 9 Voice9 VoiceUnique “hybrid” voice and music Unique “hybrid” voice and music

coder for low data rates (<= coder for low data rates (<= 20Kbps).20Kbps).

First codec to properly handle mixed First codec to properly handle mixed mode content (e.g. news plus musical mode content (e.g. news plus musical commercial)commercial)Uses an auto/manual classifier to detect Uses an auto/manual classifier to detect voice/music voice/music Applies appropriate coding mode for each Applies appropriate coding mode for each segmentsegment

Voice mode: new proprietary voice Voice mode: new proprietary voice codeccodec

20% better than ACELP shipping today 20% better than ACELP shipping today (used by Real and WM)(used by Real and WM)

Music mode: WMA algorithmsMusic mode: WMA algorithms


WMA 9 VoiceWMA 9 VoiceDEMODEMO

WMA 9 VoiceWMA 9 Voice

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Windows Media Audio & Windows Media Audio & Video 9Video 9SummarySummary Great video quality from low bit rates to HDGreat video quality from low bit rates to HD

2x better than MPEG-4, 3x better than MPEG-22x better than MPEG-4, 3x better than MPEG-2Enhanced Screen codecEnhanced Screen codecUnique Video SmoothingUnique Video Smoothing

Rich family of audio codecs with best quality Rich family of audio codecs with best quality in industryin industry

Multi-channel/high-res audio from 128-768 Kbps Multi-channel/high-res audio from 128-768 Kbps Improved WMA 9 backward compatible codec with Improved WMA 9 backward compatible codec with VBRVBRFirst “hybrid” speech/music codecFirst “hybrid” speech/music codec

Strong momentum in device spaceStrong momentum in device space130+ devices support WMA130+ devices support WMA30+ partners designing/porting WMV 9 encoders 30+ partners designing/porting WMV 9 encoders and decodersand decoders


Questions?Questions?


BackupBackup

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Audio & Video Audio & Video Compression: Compression: Industry ComparisonIndustry ComparisonData Industry Compression

(Content Dependent) Windows Media (Content Dependent)

Compression Savings

480/24p 720x480 pixels/ frame x 8bits per channel x24fps

MPEG-2 @ 4 – 6 Mbps (4:2:0 Color Sampling)

WMV Pro @ 1.3 – 2Mbps (4:2:0 Color Sampling)

3:1

480/30i 720x480 pixels/ frame x 8bits per channel x24fps

MPEG-2 @ 6 – 8Mbps (4:2:0 Color Sampling)

WMV Pro @ 2 – 4Mbps (4:1:1 Color Sampling)

2-3:1

V i d e o

720/24p 720x480 pixels/ frame x 8bits per channel x24fps

MPEG-2 @ 19Mbps (4:2:0 Color Sampling)

WMV Pro @ 5 - 8Mbps (4:2:0 Color Sampling)

2.4-3.8:1

2 ch x 48KHz x 20bits Dolby Digital 2.0 @ 220Kbps

WMA Pro @ 128Kbps 1.7:1

6 ch x 48KHz x 20bits Dolby Digital 5.1 @ 384Kbps

WMA Pro @ 192 - 256Kbps

1.5 - 2:1

A u d i o 6 ch x 48KHz x 24bits DTS 5.1 @ 1,536Kbps WMA Pro @ 768Kbps 2:1

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Windows Media Audio& Windows Media Audio& Video 9 Video 9 Device StrategyDevice StrategyWMA “bit stream syntax” already frozen for WMA “bit stream syntax” already frozen for

three yearsthree yearsKey requirement for hardware implementationKey requirement for hardware implementationMany decoder chips/ports already availableMany decoder chips/ports already available130+ non-PC devices support WMA130+ non-PC devices support WMA

WMV 9: bit stream syntax frozen for the first WMV 9: bit stream syntax frozen for the first timetime

Actively working with 30+ hardware partners for Actively working with 30+ hardware partners for decoders and encodersdecoders and encoders

Many target applications from DVD players to STBs Many target applications from DVD players to STBs and video appliancesand video appliances

DirectXVA hardware acceleration of WMV 9 DirectXVA hardware acceleration of WMV 9 decoding in graphic cards from all major decoding in graphic cards from all major manufacturersmanufacturers

Broad licensing program available for bothBroad licensing program available for both

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Windows Media Video 9 Windows Media Video 9 ImageImage

New codec which enables still New codec which enables still images to be transformed into images to be transformed into full screen video using pan and full screen video using pan and zoom effectszoom effectsCross dissolve transitions can be Cross dissolve transitions can be added between clipsadded between clipsResults can be delivered at data Results can be delivered at data rates as low as 20kbpsrates as low as 20kbpsCompressed using either 1-pass Compressed using either 1-pass CBR or VBR, they can be shared CBR or VBR, they can be shared as they are much smaller than as they are much smaller than the original imagesthe original images