Home Digital Drive

Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

Re: Hallelujah! ...some background/context

CD can sound very good. What CD-R copies can do for 44.1 kHz Redbook playback highlights the role of the transport and supply induced jitter . A related finding are that many are reporting that the average DVD player is a better transport than traditional single purpose "tank" built CD players of the past. Take a look at the sub $100 review of the Toshiba 3950 by Stereophile/John Atkinson.

Indeed the higher oversampled bit rates (352 kHz) ease the phasey effects of traditional brick wall filters but transport quality/jitter (and RFI issues) remained as the last frontier.

The real improvement (I think) from DVD players acting as transports, with regard to Redbook playback, are the 8x spin rates and digital buffers/filters that are needed to supply the DVD DACs running native at either 192 KHz. The lighter and faster tracking mechanisms probably have less impact on the supply noise. It may amount to the same thing your PC DVD converter program does but DVD players need to do it in realtime on CD tracks for a song...progress ???

Recall the idea of the excellent DAD format commercializd by Classic Records that used 96 KHz. As a friend of mine said, high quality audio could have been had by just upping the Redbook to 88.1 KHz sample rate and calling it Redbook+

Last for those who are unaware of the background behind the "Upsampling King" having no clothes...take a look at this link from 2000 and from 2003 .

PeAK



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