Archimago wrote: > > > So the dude measures distortion levels in a 16-bit format at -65dB. Very > low level! So he's basically only using the lowest 6-bits! Is that what > they did? And given that CD players / DACs in 1985 were incapable of > full 16-bit accuracy, it looks bad with at best 36dB dynamic range. And > lots of noise, etc... And says this is is a flaw of the digital > system!? >
In 1985 shortly after the CD was introduced, DACs with 16 bit resolution were available, for example the Sony CDP ES 610: 20488 Notice that all distortion artifacts are 100 dB or more down. > > Indeed. These guys should try recording some -65dB signal below the peak > allowable amplitude on a piece of vinyl and tell us how it sounds - if > it's even audible above the surface noise at all! Here's a 60 dB down 1 kHz signal from the same Sony CDP ES 610: 20489 Finally here's a signal recorded via a Grado Black cartridge mounted in a Rega turntable: 20490 Please notice that the nonlinear distortion artifacts of this device includes several that are only about 50 dB down. +-------------------------------------------------------------------+ |Filename: grado-SNR.jpg | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=20490| +-------------------------------------------------------------------+ ------------------------------------------------------------------------ arnyk's Profile: http://forums.slimdevices.com/member.php?userid=64365 View this thread: http://forums.slimdevices.com/showthread.php?t=105507 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
