atrocity;311245 Wrote: > It's too bad most (all?) of the hybrid SACDs from old analog masters > (Rolling Stones, Bob Dylan, Pink Floyd) contain DSD to PCM conversions > on their redbook CD layer.
RedBook is PCM. To get PCM, you have to convert it. Whether or not there was anything there to being with. Old masters were typically either 2" 24 track or 1/2" stereo. The terms get misused a bunch. The tracking tapes were nearly always 2" 24 track, unless you go back to pre-Sargent Peppers days. (Some of the early Beatles stuff was recorded in mono.). The 24 tracks are then mixed down to stereo and put on two track 1/2" tapes sent to the mastering engineer. For Vinyl, mastering was an art. So the mater tape in was really the 'mix down' tape, and the output of the mastering engineer was stereo sent to the pressing plant. None of the 2" machine had much frequency response above 20kHz. Most didn't have any, but it hard to generalize. Most used Dolby or something like it, long before Dolby became popular in the mass market. If the tracking was done on a typical Struder 2" machine with Dolby, there isn't much pure signal about the 20kHz that red book can cover. And Dolby processing is audible if you pay attention and have good gear. -- pfarrell Pat http://www.pfarrell.com/music/slimserver/slimsoftware.html ------------------------------------------------------------------------ pfarrell's Profile: http://forums.slimdevices.com/member.php?userid=200 View this thread: http://forums.slimdevices.com/showthread.php?t=48748 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
