4 May
2009
4 May
'09
11:08 a.m.
Philip Pemberton wrote:
Ethan Dicks wrote:
I did the ladder DAC route too, way back in the early days of adding trivial
sound to PCs - then went with a ZN428E solution. IIRC various pieces of
audio-playback software* supported them, along with a few games (I think
Wolfenstein 3D was possibly one of the latter)
* I think I found the ASCII-based schematic that I used bundled with one of
them, actually.
I can't remember if I still have the ZN428E board - I was terrible for
building projects, using them for a while, then growing bored of them and
salvaging all the useful components for other things :-)
cheers
Jules
There was a PC version called the
"Disney Sound Source" from that brief era between silent PCs and the
first "multimedia" games. I have one from testing games for
Activision in the early 1990s.
There was also the Covox Speech Thing, which ISTR was basically the same
thing. "Everyday Practical Electronics" magazine also published a design
called the "EPE SounDAC" in 1996 (!) which was apparently very similar
to the Covox, but I haven't seen the design for that. I did build an
R-2R DAC for a laptop way-back-when, though... $DEITY knows what
happened to the thing.