smeekl@cc.curtin.edu.au (10/11/90)
Does anybody out there in dsp land know about the recently introduced MASH reconstruction filter(?) in the newer generation CD players ??? I've asked some Hi-Fi Salespeople about it, but they tried to sell me one.. Thanks Lindsay
miya@nttica.ntt.jp (Hiroshi Miyanaga) (10/16/90)
In article <3957.27146ebf@cc.curtin.edu.au> smeekl@cc.curtin.edu.au writes: >>Does anybody out there in dsp land know about the recently introduced MASH >>reconstruction filter(?) in the newer generation CD players ??? MASH was invented here at NTT (Nippon Telegraph and Telephone Corp.) LSI Laboratories. The following three papers were good to read. (1) Y. Matsuya, et al "A 17-bit Oversampling D-to-A Conversion Technology Using Mutistage Noise Shaping" IEEE Jouranal of Solid-State Circuits Vol.24, No.4, August 1989, pp.969-975. (2) K. Uchimura, et al,"VLSI A-to-D and D-to-A converters with multi-stage noise shaping modulators," ICASSP86, pp.1545-1548. (3) Y. Matsuya, et al, "A 16-bit oversampling A-to-D conversion technology using triple-integration noise shaping," IEEE Journal of SC, Vol.SC-22, pp.921-929, Dec., 1987. ---------------- Hiroshi Miyanaga NTT LSI Labs, Kanagawa, Japan miya%nttica.ntt.jp@relay.cs.net
jj@alice.att.com (jj, like it or not) (10/22/90)
People interested in MASH (and other "1 bit") technologies should look at Jim Candy's papers from the 1960's and 1970's on delta-sigma modulation. The "new" algorithms are refinements of delta-sigma. -- Rince *Copyright alice!jj 1990, all rights reserved, except Philib *transmission by USENET and like free facilities granted. 'A *Said permission is granted only for complete copies that Choeil *include this notice. THIS MEANS YOU.