[ColorForth] USB soundcard (was PCI soundcard)

["Alice Maroudas" <alice@xxxxxxxxxxxxxxxxxxxxx>]

Now that the ColorForth community are giving my powerful 
modern Intel PC the same software advantage that I used to 
enjoy with FIG on a 48k Z80 (namely, an honest, elegant 
OS that encourages "onesy" projects) may I request similar 
help with hardware? 

Nowadays $40 buys the consumer a CD quality USB audio 
convertor at 44 kHz (minimal Nyquist rate for the 20kHz 
human ear).  Soon USB Codecs at 192 kHz will bring out 
even finer detail. 

Hardware problem solved?  Probably.  But in case I need 
to convince a classical musician with golden ears, I'd like to 
program a system that could synthesize fourpart harmony 
(in Just intonation) at ridiculously high rates, say 1-10 
MHz.  To make the convertor I should like someone to 
attach a fast 16 bit parallel DAC chip to a serial 
card running Forth.

For Auld Lang Syne (should old aquaintance be forgot?) 
I still have two umbilical Novix cards running cmForth 
in ROM. Rated 4Mips.  I could mail them to anyone 
qualified to attach said DAC for a reasonable fee.

Alternatively, what about the MuP21 and F21 chips?  
Their inbuilt analogue line might adapt to audio. 

Lastly, there are other umbilical cards running Forth 
(eg from MPE or TDS in England) but the one with a 
Harris RTX costs beyond my dreams and those I can 
afford have nonForth CPUs.

Hardware design? - back to Jeff Fox!  Where is Jeff?  


Nick Maroudas






                                                               
      


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