14 Mar
2005
14 Mar
'05
7:31 p.m.
On Tue, Mar 15, 2005 at 09:29:49AM +1100, Erik de Castro Lopo wrote:
That's right. One-bit converters are 'out'.
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. 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