> > If you had done this as I have, you would have found that ALL > Transports have a master clock that is both a PLL and part of a spindle > speed control system. This is why I have installed Superclocks in 100's > of customers Transports in order to reduce the S/PDIF signal output > jitter. It is also the reason why rewriting a CD with a low-jitter > writer such as a Reality-Check makes such an improvement in the > Transport output jitter. The pits are more accurately located and > easier for the Transport to read, and therefore the PLL and master > clock are less effected due to less jitter as the pits are being read. >
Sorry, I don't understand what you're saying. I thought cliveb's point was the following: the bits recorded on a CD bear little resemblance to the bits in the S/PDIF stream, because of interleaving and error-checking codes. Therefore, the bits must first be read into a buffer, after which they are processed by some chip which decodes them to S/PDIF and sends them to a DAC chip or a digital out. Now, the point was that, since the bits are coming from a buffer and not directly from the CD, there is no real difference between a CD player and a solid state player like the SB. Of course there can be some jitter going into the DAC, or in the DAC clock itself, but that's got nothing to do with the CD (modulo some form of electrical interference caused by the moving parts). You're saying that the same oscillator controls the speed of the CD spinning and the DAC, but.... so what? That doesn't seem to invalidate his point at all. -- opaqueice ------------------------------------------------------------------------ opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=28621 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
