mortslim;518450 Wrote: > So HDtracks claims: In regards to the high resolution > albums that we offer, all of our 96/24 albums are from the original > studio masters. For some of the 88.2/24 albums, they are also from the > > original analogue tape masters. > > Whats glaring by its omission is that Puget Sound says it is doing > DVD-A transfers for HDtracks (in addition to SACD). Query: why does > HDtracks omit mentioniong DVD-A? > > Many DVD-Audio releases are older, standard definition audio > recordings that have been remixed in 5.1 and upsampled to DVD-Audio's > higher resolution. However, the fidelity of the upsampled audio will be > limited by the source material quality and may not exceed the quality of > existing CD releases of the same albums. > > In a peer-reviewed blind listening test published in the Journal of > the Audio Engineering Society, the authors were unable to find any proof > that stereo DVD-Audio as a format sounds different from CD. The author > suggests that differences in the mastering for particular DVD-Audio and > CD may explain perceived differences. > http://en.wikipedia.org/wiki/DVD-Audio > > The representative from the Chicago Symphony Orchestra characterizes > Hdtracks as a retailer, not a record label. As such, that is why the > Orchestra does not make available its masters to Hdtracks. Considering > the discovery of this information as to the Orchestra, it is probably > prudent to inquire directly to every record label that is in the > Hdtracks inventory and ask them how Hdtracks prepares its downloads for > their recordings too. Do these other labels make their masters > available or only the DVD-As and SACDs? > > And then a further inquiry is needed. If a DVD-A was supplied instead > of the master, what is the bit depth and sample rate of those discs? > > DVD-As can be made at: > 16-, 20- or 24-bit depth and sample rates of: > 44.1 kHz 48 kHz 88.2 kHz 96 kHz 176.4 kHz 192 kHz > http://en.wikipedia.org/wiki/DVD-Audio > > Thus dont assume that just because it is a DVD-A that it was > manufactured at any particular resolution. > > And this is the most important point: the fidelity of the upsampled > audio will be limited by the source material quality. In other words, > if the source material is, for example, 16/44.1 and is upsampled to > 24/96, it still has the fidelity of 16/44.1. It is a fancy copy, but > that is all it is, a copy of the original. > > And as to the claim that master tapes were used as the source of some > downloads, again one must check with the respective record label to > verify this, and even if it was supplied, please re-read earlier posts > in this thread regarding the fidelity of tapes. > > As far as the setup for the SACD conversions, the equipment mentioned > is at Puget Sound studios and the studio owner has stated he does > upsampling during the conversions.
Have you yet finished your attacks and innuendo yet. First you are again suggesting upsampling of 16 bit 44.1 again. Second you and your Puget sound comment - DSD is a 1 bit difference encoded signal, you can't upsample it any further, it is only 1 bit. You have to downsample to get PCM like encoding. Also note there is no obvious translation between a 1 bit DSD signal and that of PCM. Dave -- DaveWr ------------------------------------------------------------------------ DaveWr's Profile: http://forums.slimdevices.com/member.php?userid=9331 View this thread: http://forums.slimdevices.com/showthread.php?t=74688
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