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K,(  f3$, f3VpEchoes in Brick-Wall FiltersXProbably the most significant artifact left in high-quality 48kHz digital audio systems  Where Do We Need 24/96?Recording Recorded sources should be archived at the best possible quality Mastering Mastering-processing is best done at 96kHz; Produced master should be archived in a form independent of delivery medium Delivery DVD, surround and what next?l A x  A x .J& Comparison with DSD/Channel quality: DSD: DR and/or BW limited by 2.8224MHz fs 24/96: >142dB DR, 44kHz BW if required Delivery compatibility (low sampling rates): DSD & 24/96: High quality re-sampling possible Channel data bandwidth: DSD: 2.8244 Mb/s, cannot be losslessly coded 24/96: 2.304Mb/s, halved by lossless codingQ./Y&!.$*' Comparison with DSDAAnalogue source compatibility: DSD: Available directly from 1-bit modulators Difficult to obtain from complex modulators 24/96: Requires decimation filtering Signal processing: DSD: Requires silicon-intensive and obscure processing, unless converted to PCM 24/96: Can be processed by conventional DSPsa W( How Do We DO IT?The equipment is not available The standards aren t established Not even the interface! Double-speed or  Split96 ? And what about channel status? There s no test equipment And anyway, we ve got to produce surround material now; and that s another problemB@Sm@:mV<n Data Converters for 24/96All the old issues of quality are even more important: linearity, dynamic range, jitter etc. 96kHz is only one converter parameter, but threatens to overshadow all others 24bit is now a meaningless parameter Compatibility: Interface formats, status etc. Versatility: Variable filter parameters, multiple sampling rates, rate conversion etc. But all converters will soon be 24/96, won t they?f]s]H  Other Equipment tRecorders - Many work as Split96, but don t have channels for surround working at 24/96 Routers - Most only work as Split96 Digital mixers - Easily upgradeable, Sir! Workstations - Market leaders 24/96 capable Sample rate converters - Existing types can t handle 96kHz and don t have high-quality synchronous mode; L OHW,T[ Summary If we need to re-equip for surround working, we should do so with a channel format that is  beyond reproach 24/96 should give us all the quality we need; scientific listening tests are needed to be sure 24/96 may be a lot of pain for not much gain unless quality bottlenecks are dealt with 24/96 is the best choice of  beyond reproach sound channel for the future>n }KJVPb ` 3ff` ` ___>?" dF@(?WPd@uK FA@ " d`  n?" dd@   @@``PJ   @ ` `P6pF @`F @` % ( = j"   BGsiy> @)   `5gֳgֳ ))?-   NClick to edit Master title /  H5gֳgֳ ?Mr   SClick to edit Master text styles Second Level Third Level Fourth Level Fifth Level!    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P    < Ian Dennis   8 c $@     A*  8 s *@ `P   H24-bit/96kHz Mastering  8 s *$A `   A* H 8 0޽h ? ̙33B 8 % P<\(  <x < c $$D-     < c $DMr <$0  B < s *޽h ? 3ff  8 % `$(  r  S 䲢-    r  S D!F   B  s *޽h ? 3ff 8 %  ( $Qg r  S $>-    r  S > /     c XA4C:\CORELDRW\DRAW\echo.GIFS B  s *޽h ? 3ff  8 % p $( lMMM  r  S 䵢-    r  S DMr   B  s *޽h ? 3ff 8 % z$(  AX $l $ C -    l $ C dMr   B $ s *޽h ? 3ff 8 % D0( f`d Dx D c $-    x D c $Mr   B D s *޽h ? 3ff  8 % ($( * (r ( S -    r ( S 仢,Q   B ( s *޽h ? 3ff  8 % ,$( lg ,r , S d-    r , S Ľ   B , s *޽h ? 3ff  8 % 0$( g 0r 0 S To-    r 0 S oMr   B 0 s *޽h ? 3ff 8 % @0(  @x @ c $tp-    x @ c $pMr   B @ s *޽h ? 3ffrH@F(D,'p3528D:h>z@B@-<1DJ< Fb vEjWIvE<jW7vEjW#vEjWvE j W uE j WluE j WuE j VzkE jV\hkEjjjj Ef%PEOh+'0Q hp    24-bit/96kHz Mastering Ian Denniszan  Ian Dennisz16 Microsoft PowerPoint 7.0i@XCN@ W2ȼ@@5.ɼ(GPoM  P('& &&#TNPPh0D & TNPP &&TNPP     'A x(xʦ """)))UUUMMMBBB999|PP3f3333f333ff3fffff3f3f̙f3333f3333333333f3333333f3f33ff3f3f3f3333f3333333f3̙33333f333ff3ffffff3f33f3ff3f3f3ffff3fffffffff3fffffff3f̙ffff3ff333f3ff33fff33f3ff̙3f3f3333f333ff3fffff̙̙3̙f̙̙̙3f̙3f3f3333f333ff3fffff3f3f̙3ffffffffff!___wwwCmmmmCmmmJmmmmmmmmmmmm!m mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmCmm mCmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmIm mC mm2{ĐF<;u;W7;;azPDR[ =2a.LJ )w&,&7S ur.h%C >$T"'r/< t+<0r-<9w)ғu< B%. 9Z < W ! 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WELWYN MFR4' '220R' 'THP 0.25W E.G. WELWYN MFR4' '1K' 'THP 0.25W E.G. WELWYN MFR4' '47K' 'THP 0.25W E.G. WELWYN MFR4' '2K' 'THP 0.25W E.G. WELWYN MFR4' '16K' 'THP 0.25W E.G. WELWYN MFR4' '20K' 'THP 0.25W E.G. WELWYN MFR4' '30K' 'THP 0.25W E.G. WELWYN MFR4' '27K' 'THP 0.25W E.G. WELWYN MFR4' '6K8' 'THP 0.25W E.G. WELWYN MFR4' '10K' 'THP 0.25W E.G. WELWYN MFR4' '1K5' 'THP 0.25W E.G. WELWYN MFR4' '680R' 'THP 0.25W E.G. WELWYN MFR4' '39K' 'THP 0.25W E.G. WELWYN MFR4' '620R' 'THP 0.25W E.G. WELWYN MFR4' '110K' 'THP 0.25W E.G. WELWYN MFR4' '11K' 'THP 0.25W E.G. WELWYN MFR4' '2K2' 'THP 0.25W E.G. WELWYN MFR4' '4K7' 'THP 0.25W E.G. WELWYN MFR4' '5K1' 'THP 0.25W E.G. WELWYN MFR4' '62K' 'THP 0.25W E.G. WELWYN MFR4' '47R' 'THP 0.25W E.G. WELWYN MFR4' 'BT53' 'RELAT TO BT53 PED 33 SER 53/1' '47K*8' 'THP SIL 9-PIN' '120R*8' 'THP DIL 16-PIN' 'ICS40P6' '40-WAY 0.6" TURNED-PIN SKT' 'ICS8P3' '8-WAY 0.3" TURNED-PIN SKT' 'LM317' 'TO220 ANY MANUF. ***LYING DOWN***' 'LM337' 'TO220 ANY MANUF. ***LYING DOWN***' 'LM7805' 'TO220 ANY MANUF. ***LYING DOWN***' 'MAX232' 'DIL 16P3 MAXIM MAX232CPE' 'LTC485' 'DIL 8P3 LINEAR LTC485CN8' '74HC04' 'DIL 14P3 74HCT04 ANY MANUF.' 'DS1232' 'DIL 8P3 DALLAS DS1232' 'UCN5800' 'DIL 14P3 ALLEGRO UCN5800A' '87C51' 'DIL 40P6 AMD P87C51' '74HC573' 'DIL 20P3 ANY MANUF.' 'GR281' 'DIL 24P6 ANY MANUF.' 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