On Tue, Mar 15, 2005 at 09:29:49AM +1100, Erik de Castro Lopo wrote: > The paper referenced is this one: > > http://sjeng.org/ftp/SACD.pdf > > by Lipshitz and Vanderkooy, two absolute *GIANTS* in the field of digital > audio theory and practice.
Indeed they are. Thanks for that pointer. > > First of all, most of current A/D and D/A converters are delta sigma > > modulators. > > Yes, but from what I've heard, with modern delta-simga converters, > the minimum bit width is 4 bits, not one bit. That's right. One-bit converters are 'out'. > They *may* be some advantage here in that you can pay for a very > expensive PCM -> SACD converter at the mastering stage and the > playback system becomes simpler. There's little value in simplicity if you spoil it by adding encryption and DRM. -- FA
