Gee, all these killjoys about Newtons as sound players.. OK here's a
far-fetched idea: what is the absolute maximum rate you could push data
out the serial port from C++ (either port - if you can get access to the
second port at all) without any error checking? Then take that through
an external (or internal) PCB with a D/A converter with a preamp. 22Khz
stereo at 8/16 bits/sample is roughly 88 KB/s and 176 KB/s .
Here's another far-fetch possibility: feed MP3 data directly out the
(a) serial port (or IR port if it's fast enough and you can get
bit-level access in C++ - unlikely) and then to a dedicated MP3 decoding
chip and off to a D/A and preamp. I don't know enough about MP3
circuitry to know if you'd need to be able to send signals back from the
decoder to the Newton, which would make the serial link harder.
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